War Robots is a session-based mech shooter from Pixonic, now published by MY.GAMES. It started on iOS in 2014 as Walking War Robots, and later reached Android and Steam.
Each match is a team fight on a compact map: beacon capture, team deathmatch, free-for-all and a few other modes. You build a hangar of several robots and fit each one with weapons, from missiles to plasma guns, plus modules. Between battles you upgrade the machines, and clans give you a regular squad.
It suits players who like short, fast fights and enjoy tinkering with a hangar over months. The honest caveat: progress runs on currencies and upgrades, so catching up with strong opponents takes either money or a lot of patience.
