Which game loop system should i use?

Im making a spaceship game. You spawn in with 5 players in a spaceship. You warp to start game. If you die your out. I dont know which system to do.

I got it setup for 10 rounds of random events and you win.

I am debating on changing it to go forever itill you die like days like dusty road with survival mechanics.

I dont know which way to do it. Should i pick one or just do a arcade mode and survival mode.

Should i do the dusty road system or natural disaster survival system or just do both?

dusty road and an optional arcade mode would be cool