HELLDIVERS is described as 'topdown shooter set in a satirical dystopian future where mankind is ruled by a managed democracy. You are part of the Helldivers – the spearhead of humanity’s defense against the perpetual alien threat on Super Earth'. There are 2 games similar to HELLDIVERS for Windows, Steam, Mac and Linux. The best alternative is Teleglitch.
Halo: Spartan Strike makes you a Spartan supersoldier battling evil forces. Delve into 30 challenging missions through cities and jungles using a devastating arsenal of weapons, abilities and vehicles including the iconic Warthog against the Covenant and Promethean enemies.