diff --git a/src/addresses.h b/src/addresses.h
index 90f044fcbd..612a913bbc 100644
--- a/src/addresses.h
+++ b/src/addresses.h
@@ -204,6 +204,14 @@
 #define RCT2_ADDRESS_CURRENT_MONEY_ENCRYPTED		0x013587F8
 #define RCT2_ADDRESS_CURRENT_INTEREST_RATE			0x0135934A
 
+#define RCT2_ADDRESS_GUEST_INITIAL_CASH				0x013580F4
+#define RCT2_ADDRESS_GUEST_INITIAL_HAPPINESS		0x013580E9
+#define RCT2_ADDRESS_GUEST_INITIAL_HUNGER			0x013580F6
+#define RCT2_ADDRESS_GUEST_INITIAL_THIRST			0x013580F7
+
+#define RCT2_ADDRESS_LAND_COST						0x01358770
+#define RCT2_ADDRESS_CONSTRUCTION_RIGHTS_COST		0x01358772
+
 #define RCT2_ADDRESS_PEEP_SPAWNS					0x013573F2
 
 #define RCT2_ADDRESS_CURRENT_RESEARCH_LEVEL			0x013573FF
diff --git a/src/park.c b/src/park.c
index 72eb1cd87f..29bb2a823f 100644
--- a/src/park.c
+++ b/src/park.c
@@ -93,15 +93,15 @@ void park_init()
 	RCT2_GLOBAL(0x01357CF2, uint16) = 127;
 	RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_RESEARCH_LEVEL, uint8) = 2;
 
-	RCT2_GLOBAL(0x013580F4, uint16) = 500;
-	RCT2_GLOBAL(0x013580E9, uint8) = 128;
-	RCT2_GLOBAL(0x013580F6, uint8) = 200;
-	RCT2_GLOBAL(0x013580F7, uint8) = 200;
+	RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_CASH, uint16) = MONEY(50,00); // Cash per guest (average)
+	RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_HAPPINESS, uint8) = calculate_guest_initial_happiness(50); // 50%
+	RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_HUNGER, uint8) = 200;
+	RCT2_GLOBAL(RCT2_ADDRESS_GUEST_INITIAL_THIRST, uint8) = 200;
 	RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_TYPE, uint8) = 1;
 	RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_YEAR, uint8) = 4;
 	RCT2_GLOBAL(RCT2_ADDRESS_OBJECTIVE_NUM_GUESTS, uint16) = 1000;
-	RCT2_GLOBAL(0x01358770, uint16) = 900;
-	RCT2_GLOBAL(0x01358772, uint16) = 400;
+	RCT2_GLOBAL(RCT2_ADDRESS_LAND_COST, uint16) = MONEY(90, 00);
+	RCT2_GLOBAL(RCT2_ADDRESS_CONSTRUCTION_RIGHTS_COST, uint16) = MONEY(40,00);
 	RCT2_GLOBAL(0x01358774, uint16) = 0;
 	RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) = PARK_FLAGS_11 | PARK_FLAGS_SHOW_REAL_GUEST_NAMES;
 	park_reset_history();
@@ -544,6 +544,30 @@ void park_update()
 	park_generate_new_guests();
 }
 
+static uint8 calculate_guest_initial_happiness(uint8 percentage) {
+	if (percentage < 15) {
+		// There is a minimum of 15% happiness
+		percentage = 15;
+	}
+	else if (percentage > 98) {
+		// There is a maximum of 98% happiness
+		percentage = 98;
+	}
+
+	/* The percentages follow this sequence:
+		15 17 18 20 21 23 25 26 28 29 31 32 34 36 37 39 40 42 43 45 47 48 50 51 53...
+
+		This sequence can be defined as PI*(9+n)/2 (the value is floored)
+		*/
+	uint8 n;
+	for (n = 1; n < 55; n++) {
+		if ((3.14159*(9 + n)) / 2 >= percentage) {
+			return (9 + n) * 4;
+		}
+	}
+	return 40; // This is the lowest possible value
+}
+
 /**
  *
  *  rct2: 0x0066A231
diff --git a/src/park.h b/src/park.h
index 12808a50c3..cf37909afa 100644
--- a/src/park.h
+++ b/src/park.h
@@ -56,4 +56,6 @@ void reset_park_entrances();
 void park_update();
 void park_update_histories();
 
+uint8 calculate_guest_initial_happiness();
+
 #endif