"If you don't play on the hardest setting, you can't get all the achievements"
Perfect Games Listed Below:
Sekiro: Shadows Die Twice
Resident Evil 4 (2005)
Bug Fables
Counter Strike: GO
Walking dead season 1 & 2
Bastion
The Stanley Parable
Half Life 2
Tales from Borderlands
Game of Thrones (Tell Tale)
Neverending Nightmare
The Walking Dead: Michonne
Into The Breach (I also speedrun this game lol)

Close but not yet there:
Risk of rain: 87% (13/15)