In space, no one can hear you scream.
In Chivalry, everyone can hear you "AAAAAAAaaaaah!"
(The base game isn't much quieter, btw)
The game in question is Chivalry; it's a first person multiplayer medieval action game with various game modes. The melee in the game is quite fun since it involves blocking, sideways swinging, overhead swinging, thrusting, and positioning. It also has archery (bows and crossbows) and skirmishing (can throw fire pots, knives, hatchets, and spears). I played it when Steam had a free weekend for it and enjoyed it quite a bit. It should be noted that the low gravity is a mod, and not part of the base game.
Some screenshots, because hey why not:
