Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles

Thanks for the response. I really don't think it's Unreal, as I've played many games that are built in Unreal, such as Dishonored, Hello Neighbor, Outlast, to name a few and I can run them on fairly high settings too 

Who knows. But I definitely never slap these games together, lol. It could be any number of things. I'm just not that great at optimization.