Combat Online 2 by NadGames is both a browser shooter and a sandbox platform. On the combat side you drop into fast multiplayer matches across Deathmatch, Team Deathmatch and dedicated Parkour obstacle courses, picking from a full loadout of rifles, snipers, shotguns and grenades, and earning XP from every elimination and match win as you climb the global leaderboards. What makes the sequel stand apart is everything built around those matches: more than 440 maps created by the community, from tight close-quarters arenas to sprawling parkour gauntlets, plus a complete in-game editor suite that lets you design and publish your own. That means the map pool never really settles - there is always a new layout to learn, a new sightline to abuse, and a new course to route. Toggling between first and third person on the fly changes how you read a fight, and the mix of serious gunplay and player-made chaos gives it a much longer tail than a standard arena shooter. If you like browser FPS action, you might also like Combat Online and Bullet Force.
Move with W, A, S and D, sprint with Shift and jump with Space. Fire with Left Click and hold Right Click to aim down the sights for tighter accuracy at range. Switch between your weapons with the number keys 1 to 4, throw a grenade with G, and press F to toggle between first-person and third-person view - third person is especially useful for peeking corners and reading parkour jumps. On parkour maps, focus on momentum rather than speed: line up each jump before you leave the platform instead of correcting in mid-air.
