diff --git a/src/game_logic.c b/src/game_logic.c
index 759011b..9e251ae 100644
--- a/src/game_logic.c
+++ b/src/game_logic.c
@@ -1,5 +1,7 @@
 #include "game_logic.h"
 
+#include "utility.h"
+
 #include <string.h>
 
 static uint8_t game_grid_alpha[GRID_SIDE * GRID_SIDE];
@@ -21,6 +23,23 @@ uint8_t *get_front_grid(void) {
 	return front_grid;
 }
 
+uint8_t add_random_tile(void) {
+	uint16_t rand = lfsr_update();
+	uint8_t tile_val = (rand & 0x000F) > 0x0D ? 2 : 1; // 90% chance of a tile of type 1 (a "2"), 10% of a type 2 (a "4")
+	uint8_t rand_offset = rand >> 8;
+	uint8_t tile_placed = 0;
+	
+	for (int8_t offset = 0; offset < GRID_SIDE * GRID_SIDE; offset++) {
+		if (!front_grid[(offset + rand_offset)%(GRID_SIDE * GRID_SIDE)]) {
+			front_grid[(offset + rand_offset)%(GRID_SIDE * GRID_SIDE)] = tile_val;
+			tile_placed = 1;
+			break;
+		}
+	}
+	
+	return tile_placed; // Return 0 if we were not able to place the tile
+}
+
 uint8_t *step_game(step_direction dir) {	
 	uint8_t start_offset;
 	int8_t column_step;
@@ -60,8 +79,8 @@ uint8_t *step_game(step_direction dir) {
 	// Clear the back grid
 	memset(back_grid, 0, GRID_SIDE * GRID_SIDE);
 	
-	for (int8_t row = 0; row < GRID_SIDE; row++) {
-		for(int8_t col = 0; col < GRID_SIDE; col++) {
+	for (uint8_t row = 0; row < GRID_SIDE; row++) {
+		for(uint8_t col = 0; col < GRID_SIDE; col++) {
 			uint8_t current_offset = start_offset + (col * column_step) + (row * row_step);
 			uint8_t sub_col;
 			
diff --git a/src/game_logic.h b/src/game_logic.h
index fc9d6ac..d6ed5a2 100644
--- a/src/game_logic.h
+++ b/src/game_logic.h
@@ -14,5 +14,6 @@ typedef enum {
 
 uint8_t *get_front_grid(void);
 uint8_t *step_game(step_direction dir);
+uint8_t add_random_tile(void);
 
 #endif /* _GAME_LOGIC_HEADER_ */