My Entry
how about something along the lines of like survival DM or TDM, kind of like hunger games but in blockland, and you need to scavange loving everything to find a simple bow, maybe like evade a bunch of obstacles. maybe there is a sentral "game maker" who controls everything, while the contestants fight to the death with each other, plus the map is giant and each match is like 30 minutes to 1 hour long
each map is randomly generated, random weather, and stuff
and its super realistic like getting hit once with a weapon slows you down and you bleed really slowly and you die, unless you have like a bandage or something
so just hunger games in blockland