Shoot out in the West
You are on your way to your planet when something bad happens. Your craft crash landed on a dangerous planet where the inhabitants are savage. Fortunately, you have a military girl with you on the trip. The idea here is to survive. There would be lots of nasty beings trying to kill and eat you. You need to fight back. You would start with a wrench and each one that you kill will drop a coin. You can use the money to buy guns. The game might be easy at first, but it would be more challenging as you make some progress.