diff --git a/distribution/man/openrct2.6 b/distribution/man/openrct2.6
index 954e8d2ba1..da94169582 100644
--- a/distribution/man/openrct2.6
+++ b/distribution/man/openrct2.6
@@ -144,7 +144,7 @@ Download and open a saved park.
 Run a headless server for a saved park.
 .El
 .Sh SEE ALSO
-.Lk https://openrct2.io "Offical site"
+.Lk https://openrct2.io "Official site"
 .sp
 .Lk https://github.com/OpenRCT2/OpenRCT2 "GitHub"
 .Sh HISTORY
diff --git a/distribution/openrct2.d.ts b/distribution/openrct2.d.ts
index 0471543d4b..acbd7de6ca 100644
--- a/distribution/openrct2.d.ts
+++ b/distribution/openrct2.d.ts
@@ -45,7 +45,7 @@ declare global {
     var ui: Ui;
 
     /**
-     * Registers the plugin. This only only be called once.
+     * Registers the plugin. This may only be called once.
      * @param metadata Information about the plugin and the entry point.
      */
     function registerPlugin(metadata: PluginMetadata): void;
@@ -144,7 +144,7 @@ declare global {
         configuration: Configuration;
 
         /**
-         * Shared generic storage for all plugins. Data is persistant across instances
+         * Shared generic storage for all plugins. Data is persistent across instances
          * of OpenRCT2 and is stored externally as a single JSON file in the OpenRCT2
          * user directory. Internally it is a JavaScript object. Objects and arrays
          * are only copied by reference. The external file is only written when using
@@ -2030,7 +2030,7 @@ declare global {
     }
 
     /**
-     * Listens for incomming connections.
+     * Listens for incoming connections.
      * Based on node.js net.Server, see https://nodejs.org/api/net.html for more information.
      */
     interface Listener {
diff --git a/src/openrct2-cli/Cli.cpp b/src/openrct2-cli/Cli.cpp
index 815a29f28e..1492858ff8 100644
--- a/src/openrct2-cli/Cli.cpp
+++ b/src/openrct2-cli/Cli.cpp
@@ -15,7 +15,7 @@
 using namespace OpenRCT2;
 
 /**
- * Main entry point for non-Windows sytems. Windows instead uses its own DLL proxy.
+ * Main entry point for non-Windows systems. Windows instead uses its own DLL proxy.
  */
 int main(int argc, const char** argv)
 {
diff --git a/src/openrct2-ui/drawing/engines/opengl/SwapFramebuffer.cpp b/src/openrct2-ui/drawing/engines/opengl/SwapFramebuffer.cpp
index 564190045b..fb7098183c 100644
--- a/src/openrct2-ui/drawing/engines/opengl/SwapFramebuffer.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/SwapFramebuffer.cpp
@@ -45,7 +45,7 @@ void SwapFramebuffer::ApplyTransparency(ApplyTransparencyShader& shader, GLuint
     glClearBufferfv(GL_DEPTH, 0, depthValueTransparent);
 
     _opaqueFramebuffer.SwapColourBuffer(_mixFramebuffer);
-    // Change binding to guaruntee no undefined behavior
+    // Change binding to guarantee no undefined behavior
     _opaqueFramebuffer.Bind();
 }
 
diff --git a/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.cpp b/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.cpp
index 5ba08c1509..7fe9d33021 100644
--- a/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.cpp
+++ b/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.cpp
@@ -158,7 +158,7 @@ static inline void RemoveBottomEndpoint(IntervalTree& y_intersect, IntervalTree:
 }
 
 /*
- * Determines an aproximation of the number of depth peeling iterations needed
+ * Determines an approximation of the number of depth peeling iterations needed
  * to render the command batch. It will never underestimate the number of
  * iterations, but it can overestimate, usually by no more than +2.
  */
diff --git a/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.h b/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.h
index 4e8b87ada0..4ba6f96f0b 100644
--- a/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.h
+++ b/src/openrct2-ui/drawing/engines/opengl/TransparencyDepth.h
@@ -14,7 +14,7 @@
 #include <openrct2/common.h>
 
 /*
- * Determines an aproximation of the number of depth peeling iterations needed
+ * Determines an approximation of the number of depth peeling iterations needed
  * to render the command batch. It will never underestimate the number of
  * iterations, but it can overestimate, usually by no more than +2.
  */
diff --git a/src/openrct2-ui/windows/LoadSave.cpp b/src/openrct2-ui/windows/LoadSave.cpp
index 072d3e2e48..3ad1ccdb4e 100644
--- a/src/openrct2-ui/windows/LoadSave.cpp
+++ b/src/openrct2-ui/windows/LoadSave.cpp
@@ -644,7 +644,7 @@ static void window_loadsave_compute_max_date_width()
 
     std::time_t long_time = mktime(&tm);
 
-    // Check how how this date is represented (e.g. 2000-02-20, or 00/02/20)
+    // Check how this date is represented (e.g. 2000-02-20, or 00/02/20)
     std::string date = Platform::FormatShortDate(long_time);
     maxDateWidth = gfx_get_string_width(date.c_str()) + DATE_TIME_GAP;
 
@@ -653,7 +653,7 @@ static void window_loadsave_compute_max_date_width()
     tm.tm_yday = 294;
     long_time = mktime(&tm);
 
-    // Again, check how how this date is represented (e.g. 2000-10-20, or 00/10/20)
+    // Again, check how this date is represented (e.g. 2000-10-20, or 00/10/20)
     date = Platform::FormatShortDate(long_time);
     maxDateWidth = std::max(maxDateWidth, gfx_get_string_width(date.c_str()) + DATE_TIME_GAP);
 
diff --git a/src/openrct2-ui/windows/Options.cpp b/src/openrct2-ui/windows/Options.cpp
index aaa236e399..4ba57e6b59 100644
--- a/src/openrct2-ui/windows/Options.cpp
+++ b/src/openrct2-ui/windows/Options.cpp
@@ -1570,7 +1570,7 @@ static void window_options_audio_invalidate(rct_window* w)
     WidgetSetEnabled(w, WIDX_SOUND_CHECKBOX, gConfigSound.master_sound_enabled);
     WidgetSetEnabled(w, WIDX_MUSIC_CHECKBOX, gConfigSound.master_sound_enabled);
 
-    // Initialize only on first frame, otherwise the scrollbars wont be able to be modified
+    // Initialize only on first frame, otherwise the scrollbars won't be able to be modified
     if (w->frame_no == 0)
     {
         initialize_scroll_position(w, WIDX_MASTER_VOLUME, 0, gConfigSound.master_volume);
diff --git a/src/openrct2-ui/windows/RideList.cpp b/src/openrct2-ui/windows/RideList.cpp
index b925736874..ef4a16e455 100644
--- a/src/openrct2-ui/windows/RideList.cpp
+++ b/src/openrct2-ui/windows/RideList.cpp
@@ -497,7 +497,7 @@ static void window_ride_list_invalidate(rct_window* w)
     w->widgets[WIDX_PAGE_BACKGROUND].bottom = w->height - 1;
     w->widgets[WIDX_TITLE].right = w->width - 2;
 
-    // if close buttton is on the right then it must move
+    // if close button is on the right then it must move
     w->widgets[WIDX_CLOSE].left = w->width - 13;
     w->widgets[WIDX_CLOSE].right = w->width - 3;
 
diff --git a/src/openrct2-ui/windows/TrackDesignPlace.cpp b/src/openrct2-ui/windows/TrackDesignPlace.cpp
index 668bb927a2..3132a220e2 100644
--- a/src/openrct2-ui/windows/TrackDesignPlace.cpp
+++ b/src/openrct2-ui/windows/TrackDesignPlace.cpp
@@ -233,7 +233,7 @@ static GameActions::Result::Ptr FindValidTrackDesignPlaceHeight(CoordsXYZ& loc,
         tdAction.SetFlags(flags);
         res = GameActions::Query(&tdAction);
 
-        // If successful dont keep trying.
+        // If successful don't keep trying.
         // If failure due to no money then increasing height only makes problem worse
         if (res->Error == GameActions::Status::Ok || res->Error == GameActions::Status::InsufficientFunds)
         {
diff --git a/src/openrct2/Context.cpp b/src/openrct2/Context.cpp
index 49b9f6e2fe..9dbe537c38 100644
--- a/src/openrct2/Context.cpp
+++ b/src/openrct2/Context.cpp
@@ -122,7 +122,7 @@ namespace OpenRCT2
         uint32_t _lastUpdateTime = 0;
         bool _variableFrame = false;
 
-        // If set, will end the OpenRCT2 game loop. Intentially private to this module so that the flag can not be set back to
+        // If set, will end the OpenRCT2 game loop. Intentionally private to this module so that the flag can not be set back to
         // false.
         bool _finished = false;
 
diff --git a/src/openrct2/GameStateSnapshots.h b/src/openrct2/GameStateSnapshots.h
index 1b06fdb8ea..ef92bbe99e 100644
--- a/src/openrct2/GameStateSnapshots.h
+++ b/src/openrct2/GameStateSnapshots.h
@@ -55,7 +55,7 @@ struct GameStateCompareData_t
 };
 
 /*
- * Interface to create and capture game states. It only allows to have 32 active snapshots
+ * Interface to create and capture game states. It only allows one to have 32 active snapshots
  * the oldest snapshot will be removed from the buffer. Never store the snapshot pointer
  * as it may become invalid at any time when a snapshot is created, rather Link the snapshot
  * to a specific tick which can be obtained by that later again assuming its still valid.
diff --git a/src/openrct2/actions/GameActionCompat.cpp b/src/openrct2/actions/GameActionCompat.cpp
index 01de237685..00c45e2090 100644
--- a/src/openrct2/actions/GameActionCompat.cpp
+++ b/src/openrct2/actions/GameActionCompat.cpp
@@ -143,7 +143,7 @@ money32 maze_set_track(
         res = GameActions::Execute(&gameAction);
 
     // NOTE: ride_construction_tooldown_construct requires them to be set.
-    // Refactor result type once theres no C code referencing this function.
+    // Refactor result type once there's no C code referencing this function.
     if (auto title = res->ErrorTitle.AsStringId())
         gGameCommandErrorTitle = *title;
     else
diff --git a/src/openrct2/actions/LandSmoothAction.cpp b/src/openrct2/actions/LandSmoothAction.cpp
index 92132743e4..ed9215afe5 100644
--- a/src/openrct2/actions/LandSmoothAction.cpp
+++ b/src/openrct2/actions/LandSmoothAction.cpp
@@ -572,7 +572,7 @@ GameActions::Result::Ptr LandSmoothAction::SmoothLand(bool isExecuting) const
                 { 0, 1, 3, 2 }, // MAP_SELECT_TYPE_EDGE_2
                 { 1, 2, 0, 3 }, // MAP_SELECT_TYPE_EDGE_3
             };
-            // Big coordinate offsets for the neigbouring tile for the given edge selection
+            // Big coordinate offsets for the neighbouring tile for the given edge selection
             static constexpr CoordsXY stepOffsets[] = {
                 { -32, 0 },
                 { 0, 32 },
diff --git a/src/openrct2/common.h b/src/openrct2/common.h
index dc284a5f3c..4174dae1b3 100644
--- a/src/openrct2/common.h
+++ b/src/openrct2/common.h
@@ -87,14 +87,14 @@ namespace
 #    define _strdup(x) strdup((x))
 
 #    if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-#        define RCT2_ENDIANESS __ORDER_LITTLE_ENDIAN__
+#        define RCT2_ENDIANNESS __ORDER_LITTLE_ENDIAN__
 #        define LOBYTE(w) (static_cast<uint8_t>(w))
 #        define HIBYTE(w) (static_cast<uint8_t>((static_cast<uint16_t>(w) >> 8) & 0xFF))
 #    endif // __BYTE_ORDER__
 
-#    ifndef RCT2_ENDIANESS
-#        error Unknown endianess!
-#    endif // RCT2_ENDIANESS
+#    ifndef RCT2_ENDIANNESS
+#        error Unknown endianness!
+#    endif // RCT2_ENDIANNESS
 
 #endif // defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
 
diff --git a/src/openrct2/core/Http.cURL.cpp b/src/openrct2/core/Http.cURL.cpp
index 2c1345508a..d18a9c1750 100644
--- a/src/openrct2/core/Http.cURL.cpp
+++ b/src/openrct2/core/Http.cURL.cpp
@@ -47,7 +47,7 @@ namespace Http
         if (pos != std::string::npos)
         {
             std::string key = line.substr(0, pos);
-            // substract 4 chars for ": " and "\r\n"
+            // subtract 4 chars for ": " and "\r\n"
             std::string value = line.substr(pos + 2, line.size() - pos - 4);
             res->header[key] = value;
         }
diff --git a/src/openrct2/core/JobPool.cpp b/src/openrct2/core/JobPool.cpp
index b8172b7e2c..f979467bb4 100644
--- a/src/openrct2/core/JobPool.cpp
+++ b/src/openrct2/core/JobPool.cpp
@@ -100,7 +100,7 @@ void JobPool::ProcessQueue()
     unique_lock lock(_mutex);
     do
     {
-        // Wait for work or cancelation.
+        // Wait for work or cancellation.
         _condPending.wait(lock, [this]() { return _shouldStop || !_pending.empty(); });
 
         if (!_pending.empty())
diff --git a/src/openrct2/drawing/ImageImporter.cpp b/src/openrct2/drawing/ImageImporter.cpp
index 04558eedf4..b537255fbc 100644
--- a/src/openrct2/drawing/ImageImporter.cpp
+++ b/src/openrct2/drawing/ImageImporter.cpp
@@ -30,7 +30,7 @@ ImportResult ImageImporter::Import(
 
     if ((flags & IMPORT_FLAGS::KEEP_PALETTE) && image.Depth != 8)
     {
-        throw std::invalid_argument("Image is not palletted, it has bit depth of " + std::to_string(image.Depth));
+        throw std::invalid_argument("Image is not paletted, it has bit depth of " + std::to_string(image.Depth));
     }
 
     const auto width = image.Width;
diff --git a/src/openrct2/drawing/SSE41Drawing.cpp b/src/openrct2/drawing/SSE41Drawing.cpp
index 76472438e8..e633b58478 100644
--- a/src/openrct2/drawing/SSE41Drawing.cpp
+++ b/src/openrct2/drawing/SSE41Drawing.cpp
@@ -59,7 +59,7 @@ void mask_sse4_1(
 #else
 
 #    ifdef OPENRCT2_X86
-#        error You have to compile this file with SSE4.1 enabled, when targetting x86!
+#        error You have to compile this file with SSE4.1 enabled, when targeting x86!
 #    endif
 
 void mask_sse4_1(
diff --git a/src/openrct2/localisation/Convert.cpp b/src/openrct2/localisation/Convert.cpp
index 666e9e7c9c..3d9966b152 100644
--- a/src/openrct2/localisation/Convert.cpp
+++ b/src/openrct2/localisation/Convert.cpp
@@ -17,7 +17,7 @@
 
 /**
  * Decodes an RCT2 string to a wide char string still in the original code page.
- * An RCT2 string is a multi-byte string where every two-byte code point is preceeded with a byte value of 255.
+ * An RCT2 string is a multi-byte string where every two-byte code point is preceded with a byte value of 255.
  */
 static std::wstring DecodeToWideChar(std::string_view src)
 {
diff --git a/src/openrct2/management/Research.cpp b/src/openrct2/management/Research.cpp
index ec8affcb6d..a1bf227d8a 100644
--- a/src/openrct2/management/Research.cpp
+++ b/src/openrct2/management/Research.cpp
@@ -941,7 +941,7 @@ static void research_update_first_of_type(ResearchItem* researchItem)
     auto rideType = researchItem->baseRideType;
     if (rideType >= RIDE_TYPE_COUNT)
     {
-        log_error("Research item has non-existant ride type index %d", rideType);
+        log_error("Research item has non-existent ride type index %d", rideType);
         return;
     }
 
diff --git a/src/openrct2/network/NetworkBase.cpp b/src/openrct2/network/NetworkBase.cpp
index 768df41ae4..d836a166d6 100644
--- a/src/openrct2/network/NetworkBase.cpp
+++ b/src/openrct2/network/NetworkBase.cpp
@@ -268,7 +268,7 @@ bool NetworkBase::BeginClient(const std::string& host, uint16_t port)
     BeginServerLog();
 
     // We need to wait for the map load before we execute any actions.
-    // If the client has the title screen running then theres a potential
+    // If the client has the title screen running then there's a potential
     // risk of tick collision with the server map and title screen map.
     GameActions::SuspendQueue();
 
@@ -3571,7 +3571,7 @@ GameActions::Result::Ptr network_modify_groups(
         case ModifyGroupType::SetPermissions:
         {
             if (groupId == 0)
-            { // cant change admin group permissions
+            { // can't change admin group permissions
                 return std::make_unique<GameActions::Result>(
                     GameActions::Status::Disallowed, STR_THIS_GROUP_CANNOT_BE_MODIFIED);
             }
diff --git a/src/openrct2/network/Socket.cpp b/src/openrct2/network/Socket.cpp
index c37cde71dc..9a0b84a7ce 100644
--- a/src/openrct2/network/Socket.cpp
+++ b/src/openrct2/network/Socket.cpp
@@ -906,7 +906,7 @@ static std::vector<INTERFACE_INFO> GetNetworkInterfaces()
         return {};
     }
 
-    // Get all the network interfaces, requires a trial and error approch
+    // Get all the network interfaces, requires a trial and error approach
     // until we find the capacity required to store all of them.
     DWORD len = 0;
     size_t capacity = 16;
diff --git a/src/openrct2/peep/Guest.cpp b/src/openrct2/peep/Guest.cpp
index bfee63950d..97f8e21d04 100644
--- a/src/openrct2/peep/Guest.cpp
+++ b/src/openrct2/peep/Guest.cpp
@@ -1196,7 +1196,7 @@ void Guest::CheckIfLost()
 /**
  *
  *  rct2: 0x69C26B
- * Check if cant find ride.
+ * Check if can't find ride.
  */
 void Guest::CheckCantFindRide()
 {
@@ -1228,7 +1228,7 @@ void Guest::CheckCantFindRide()
 /**
  *
  *  rct2: 0x69C2D0
- * Check if cant find exit.
+ * Check if can't find exit.
  */
 void Guest::CheckCantFindExit()
 {
diff --git a/src/openrct2/peep/GuestPathfinding.cpp b/src/openrct2/peep/GuestPathfinding.cpp
index 431af56dac..2f24c6361f 100644
--- a/src/openrct2/peep/GuestPathfinding.cpp
+++ b/src/openrct2/peep/GuestPathfinding.cpp
@@ -84,7 +84,7 @@ static TileElement* get_banner_on_path(TileElement* path_element)
         // Found a banner
         if (bannerElement->GetType() == TILE_ELEMENT_TYPE_BANNER)
             return bannerElement;
-        // Last element so there cant be any other banners
+        // Last element so there can't be any other banners
         if (bannerElement->IsLastForTile())
             return nullptr;
 
diff --git a/src/openrct2/peep/Peep.h b/src/openrct2/peep/Peep.h
index ef932ce624..dc722228ae 100644
--- a/src/openrct2/peep/Peep.h
+++ b/src/openrct2/peep/Peep.h
@@ -257,7 +257,7 @@ enum class PeepRideSubState : uint8_t
     AtEntrance = 0,
     InEntrance = 1,
     FreeVehicleCheck = 2, // Spend money on ride
-    LeaveEntrance = 3,    // Calculate what direction and where to go after commiting to entering vehicle
+    LeaveEntrance = 3,    // Calculate what direction and where to go after committing to entering vehicle
     ApproachVehicle = 4,
     EnterVehicle = 5,
     OnRide = 6,
diff --git a/src/openrct2/platform/Crash.cpp b/src/openrct2/platform/Crash.cpp
index 2b39473b19..28ddc40536 100644
--- a/src/openrct2/platform/Crash.cpp
+++ b/src/openrct2/platform/Crash.cpp
@@ -55,7 +55,7 @@ const wchar_t* _wszArchitecture = WSZ(OPENRCT2_ARCHITECTURE);
 // Note: uploading gzipped crash dumps manually requires specifying
 // 'Content-Encoding: gzip' header in HTTP request, but we cannot do that,
 // so just hope the file name with '.gz' suffix is enough.
-// For docs on uplading to backtrace.io check
+// For docs on uploading to backtrace.io check
 // https://documentation.backtrace.io/product_integration_minidump_breakpad/
 static bool UploadMinidump(const std::map<std::wstring, std::wstring>& files, int& error, std::wstring& response)
 {
@@ -274,7 +274,7 @@ static bool OnCrash(
         }
         else
         {
-            MessageBoxW(nullptr, L"Dump uploaded succesfully.", WSZ(OPENRCT2_NAME), MB_OK | MB_ICONINFORMATION);
+            MessageBoxW(nullptr, L"Dump uploaded successfully.", WSZ(OPENRCT2_NAME), MB_OK | MB_ICONINFORMATION);
         }
     }
     HRESULT coInitializeResult = CoInitialize(nullptr);
diff --git a/src/openrct2/rct1/T4Importer.cpp b/src/openrct2/rct1/T4Importer.cpp
index 9477f5903e..31fb2d7173 100644
--- a/src/openrct2/rct1/T4Importer.cpp
+++ b/src/openrct2/rct1/T4Importer.cpp
@@ -146,7 +146,7 @@ private:
             td->ride_mode = RideMode::PoweredLaunch;
         }
 
-        // Convert RCT1 vehicle type to RCT2 vehicle type. Intialise with an string consisting of 8 spaces.
+        // Convert RCT1 vehicle type to RCT2 vehicle type. Initialise with a string consisting of 8 spaces.
         rct_object_entry vehicleObject = { 0x80, "        " };
         if (td4Base.type == RIDE_TYPE_MAZE)
         {
diff --git a/src/openrct2/rct12/RCT12.h b/src/openrct2/rct12/RCT12.h
index 0a9bf98d06..d2542aabbc 100644
--- a/src/openrct2/rct12/RCT12.h
+++ b/src/openrct2/rct12/RCT12.h
@@ -142,7 +142,7 @@ enum
     RCT12_FOOTPATH_PROPERTIES_TYPE_MASK = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7),
 };
 
-// Masks and flags for values stored in in RCT12TileElement.properties.path.additions
+// Masks and flags for values stored in RCT12TileElement.properties.path.additions
 enum
 {
     RCT12_FOOTPATH_PROPERTIES_ADDITIONS_TYPE_MASK = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
diff --git a/src/openrct2/rct2/S6Exporter.cpp b/src/openrct2/rct2/S6Exporter.cpp
index 070c19df9f..5e0dedbb77 100644
--- a/src/openrct2/rct2/S6Exporter.cpp
+++ b/src/openrct2/rct2/S6Exporter.cpp
@@ -1439,7 +1439,7 @@ void S6Exporter::ExportTileElements()
 
 void S6Exporter::ExportTileElement(RCT12TileElement* dst, TileElement* src)
 {
-    // Todo: allow for changing defition of OpenRCT2 tile element types - replace with a map
+    // Todo: allow for changing definition of OpenRCT2 tile element types - replace with a map
     uint8_t tileElementType = src->GetType();
     dst->ClearAs(tileElementType);
     dst->SetDirection(src->GetDirection());
diff --git a/src/openrct2/rct2/S6Importer.cpp b/src/openrct2/rct2/S6Importer.cpp
index 94d51f3e7a..7bc48be7d7 100644
--- a/src/openrct2/rct2/S6Importer.cpp
+++ b/src/openrct2/rct2/S6Importer.cpp
@@ -1056,7 +1056,7 @@ public:
 
     void ImportTileElement(TileElement* dst, const RCT12TileElement* src)
     {
-        // Todo: allow for changing defition of OpenRCT2 tile element types - replace with a map
+        // Todo: allow for changing definition of OpenRCT2 tile element types - replace with a map
         uint8_t tileElementType = src->GetType();
         dst->ClearAs(tileElementType);
         dst->SetDirection(src->GetDirection());
diff --git a/src/openrct2/ride/Vehicle.cpp b/src/openrct2/ride/Vehicle.cpp
index eeca788f8f..2b267a8c0c 100644
--- a/src/openrct2/ride/Vehicle.cpp
+++ b/src/openrct2/ride/Vehicle.cpp
@@ -9892,7 +9892,7 @@ Vehicle* Vehicle::GetCar(size_t carIndex) const
         car = GetEntity<Vehicle>(car->next_vehicle_on_train);
         if (car == nullptr)
         {
-            log_error("Tried to get non-existant car from index!");
+            log_error("Tried to get non-existent car from index!");
             return nullptr;
         }
     }
diff --git a/src/openrct2/world/Climate.cpp b/src/openrct2/world/Climate.cpp
index 91c58bf067..731922ab31 100644
--- a/src/openrct2/world/Climate.cpp
+++ b/src/openrct2/world/Climate.cpp
@@ -282,7 +282,7 @@ static int8_t climate_step_weather_level(int8_t currentWeatherLevel, int8_t next
 
 /**
  * Calculates future weather development.
- * RCT2 implements this as discrete probability distributions dependant on month and climate
+ * RCT2 implements this as discrete probability distributions dependent on month and climate
  * for nextWeather. The other weather parameters are then looked up depending only on the
  * next weather.
  */
diff --git a/src/openrct2/world/Footpath.cpp b/src/openrct2/world/Footpath.cpp
index 8415f80f8b..5dfbefffe5 100644
--- a/src/openrct2/world/Footpath.cpp
+++ b/src/openrct2/world/Footpath.cpp
@@ -1258,7 +1258,7 @@ static void footpath_fix_ownership(const CoordsXY& mapPos)
         {
             ownership = OWNERSHIP_UNOWNED;
         }
-        // If the tile is safe to own construction rights of, do not erase contruction rights.
+        // If the tile is safe to own construction rights of, do not erase construction rights.
         else
         {
             ownership = surfaceElement->GetOwnership();
diff --git a/src/openrct2/world/Footpath.h b/src/openrct2/world/Footpath.h
index 6a033139cb..94435e0f6c 100644
--- a/src/openrct2/world/Footpath.h
+++ b/src/openrct2/world/Footpath.h
@@ -89,7 +89,7 @@ enum
     FOOTPATH_PROPERTIES_TYPE_MASK = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7),
 };
 
-// Masks and flags for values stored in in TileElement.properties.path.edges
+// Masks and flags for values stored in TileElement.properties.path.edges
 enum
 {
     FOOTPATH_PROPERTIES_EDGES_EDGES_MASK = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
diff --git a/src/openrct2/world/SmallScenery.cpp b/src/openrct2/world/SmallScenery.cpp
index 9179d8b882..637169cbfc 100644
--- a/src/openrct2/world/SmallScenery.cpp
+++ b/src/openrct2/world/SmallScenery.cpp
@@ -121,7 +121,7 @@ void SmallSceneryElement::IncreaseAge(const CoordsXY& sceneryPos)
     {
         uint8_t newAge = age++;
 
-        // Only invalidate tiles when scenery crosses the withering threshholds, and can be withered.
+        // Only invalidate tiles when scenery crosses the withering thresholds, and can be withered.
         if (newAge == SCENERY_WITHER_AGE_THRESHOLD_1 || newAge == SCENERY_WITHER_AGE_THRESHOLD_2)
         {
             rct_scenery_entry* entry = GetEntry();
diff --git a/test/testpaint/TestTrack.cpp b/test/testpaint/TestTrack.cpp
index e167ab49a4..f725273cb0 100644
--- a/test/testpaint/TestTrack.cpp
+++ b/test/testpaint/TestTrack.cpp
@@ -388,21 +388,21 @@ static uint8_t TestTrackElementPaintCalls(uint8_t rideType, uint8_t trackType, u
                 std::vector<function_call> newCalls;
                 newCalls.insert(newCalls.begin(), callBuffer, callBuffer + callCount);
 
-                bool sucess = true;
+                bool success = true;
                 if (oldCalls.size() != newCalls.size())
                 {
                     *error += String::Format(
                         "Call counts don't match (was %d, expected %d). %s\n", newCalls.size(), oldCalls.size(),
                         caseName.c_str());
-                    sucess = false;
+                    success = false;
                 }
                 else if (!FunctionCall::AssertsEquals(oldCalls, newCalls))
                 {
                     *error += String::Format("Calls don't match. %s\n", caseName.c_str());
-                    sucess = false;
+                    success = false;
                 }
 
-                if (!sucess)
+                if (!success)
                 {
                     *error += " Expected:\n";
                     *error += Printer::PrintFunctionCalls(oldCalls, height);
diff --git a/test/tests/PlayTests.cpp b/test/tests/PlayTests.cpp
index 7758f80920..bc203938d5 100644
--- a/test/tests/PlayTests.cpp
+++ b/test/tests/PlayTests.cpp
@@ -110,7 +110,7 @@ TEST_F(PlayTests, SecondGuestInQueueShouldNotRideIfNoFunds)
     ride_set_status(&ferrisWheel, RIDE_STATUS_OPEN);
     execute<RideSetPriceAction>(ferrisWheel.id, 0, true);
 
-    // Ignore intesity to stimulate peeps to queue into ferris wheel
+    // Ignore intensity to stimulate peeps to queue into ferris wheel
     gCheatsIgnoreRideIntensity = true;
 
     // Insert a rich guest
@@ -170,7 +170,7 @@ TEST_F(PlayTests, CarRideWithOneCarOnlyAcceptsTwoGuests)
     ride_set_status(&carRide, RIDE_STATUS_OPEN);
     execute<RideSetPriceAction>(carRide.id, 0, true);
 
-    // Ignore intesity to stimulate peeps to queue into the ride
+    // Ignore intensity to stimulate peeps to queue into the ride
     gCheatsIgnoreRideIntensity = true;
 
     // Create some guests
diff --git a/test/tests/sawyercoding_test.cpp b/test/tests/sawyercoding_test.cpp
index c23bd95ce9..aa92b59552 100644
--- a/test/tests/sawyercoding_test.cpp
+++ b/test/tests/sawyercoding_test.cpp
@@ -83,7 +83,7 @@ TEST_F(SawyerCodingTest, write_read_chunk_rotate)
 
 // Note we only check if provided data decompresses to the same data, not if it compresses the same.
 // The reason for that is we may improve encoding at some point, but the test won't be affected,
-// as we already do a decode test and rountrip (encode + decode), which validates all uses.
+// as we already do a decode test and roundtrip (encode + decode), which validates all uses.
 
 TEST_F(SawyerCodingTest, decode_chunk_none)
 {