Make things for warfare.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Can you add a fusion-powered laser robot and capsule (that doesn't have a time limit)?
no.
You can't not have a death timer. In theory you could set it to a very long time (I tried with a day, I don't know what the limit is but I presume signed 32bit int ticks, which is 414.25 days) but eventually, it will still die.
