Fun. Sometimes really difficult because FUEL doesn't come up as often as would be necessary. Played til Lev 2 and then got totally destroyed ahahha
Thanks for playing! It's hard, I've never got past the level 3 wall.
I tried to keep the spawns rare enough that you have to make difficult choices. At the start of every level, you can refill either ammo or fuel. I think you have to get a really bad seed not to get a single extra fuel in the level. I'll take a look at whether it needs an increase.