Captain ToonHead is a VR 1st person tower defense/shooter game with some 90's flare.
Vigilante Ranger has you facing off against hordes of killer robots in first-person tower defence action
Animal Force is an odd Tower Defence type game with a few local vs modes as well.
A well balanced tower defence title that works great in VR and carries with it a fair bit of charm and challenge...and robots!!!
Korix is a blending of the RTS and Tower Defence genre's and for the most part works great!
Armed with machine guns and sniper rifles you fight off ghosts and skeltons in this budget turret shooter.