If you like FPS games then GalacticVerse is for you! It is a single player free to play game that is on steam.
This game has 3 different maps to choose from and it allows you to have AI bots on your team.
However, trying to find the enemy team is difficult because non of them have names above their heads and if you look really closely through the walls you can see a red outline or blue and you have to know what team you are on.
This game would be cool if it is pvp but it is only pve at the moment and it is early access so hopefully soon they will add pvp and more stuff to it. Other than that it is an okay game.