For now i got this:

Space Hunt (0 votes)
Gravity Battle (3 votes)
Dunk tank (1 votes)
Cave Variation Snooker (0 votes)
Space box (2 votes)

about the snooker scheme i already watched it, it shares similarities but i dont see it as a variation anyway, its under discussion.

crates and mines shouldn´t be removed for thoese reasons: Lupastic already explain why u can get x2 of damage (recommended when u have a supersheep), "the utilitycrates are sometimes very useful for bigger booms" but also they work as opposite blocking your shot, anyway this option can be reduce or increased up to host for most or less
difficulty. About mines the same, 3rd rule explains why. Mines and Fire could make an unsuccessful landing witch means u have to be careful every time u move ur "token" limiting ur placement.(also this seeting can be reduced or increased up to host).

my idea: inventory is updated every turn (witch means the all leftover weapons that had been picked up in crates, they are gonna be wipe up at the end of every turn). with the option to select whitch weapon will remain.