- Tales Of The H.O.T G.R.O.U.N.D
- Tantamount
- Tyrant's Utopia
- Underlust
- Underpants
- Undershuffle
- Underswap: Over The World
- Undertale Arena
- Undertale Hacked
- Undertale Red
- Undertale Something New
- Undertale: Bits and Pieces
- Undertale: Call Of The Void
- Undertale: Disbelief
- Undertale: Halloween Hack
- Undertale: Help From The Void
- Undertale: Last Breath
- Undertale: Nihilism
- Undertale: Overwritten
- Undertale: Plan B
- Underworld
- Warmtale
- XTale
- Your Battle