#9
Soldat is the wildcard on this list and I mean that as a compliment. It's a side-scrolling shooter where you jetpack between cover, grapple hook across maps, and try to hit people who are moving in four directions at once. Rounds are short and chaotic in a way that's very different from everything else here, which makes it a genuinely useful palette cleanser in a long LAN evening. I tried this with a group who had never seen it before and within two rounds everyone was shouting about who killed them and demanding a rematch. Private servers work well, it runs on anything, and bots are available when you're short on players. Not a main event pick, but a memorable one.