Additional Consideration
Kind of an MMO, everyone shares a coop hangout/talking space and contributes towards the same common goal of building a nuke to bomb hell and save humanity. The arena gameplay is also multiplayer: to play with your buddies - ask everyone to stand on top of the pentagram (press enter to open chat) and say the magic words. Souls can be picked up when not shooting. Only souls sacrificed to the soulstone in the middle of arena can return to the surface and be used in the bomb construction.

originally you were supposed to be able to slowly contribute to the construction of buildings and unlock the for use in arena like you do with the nuke, but we decided to keep them all unlocked from the start for now.

P.S. the arena is made of flesh and has a visible pulse.

Multiplayer Award Consideration
Sure is!