Hey, thanks for the feedback! I use Gdevelop. The games I listed (Iron Lung, Lidar.exe) as inspiration both present a unique way of letting the player "see" the game world. They are both pretty great experiences if you are into horror :)
In addition to the limited fuel, one other idea I had was to change the exit coordinates to a number that increases/decreases as you move further away/closer to the exit. That way, it's not as cut-and-dry where you should head to.