Heya if you like a quake styled game you could always try Team Fortress 2, or Quake Live on steam or Overwatch is coming out soon so you could be excited for that!
Undertale is an amazing game it takes the art style of "Earthbound and Mother 3". You can also have multiple endings example being you dont kill anmyone or you do etc and if you do kill someone and start over it still effects you in some way...