Medieval Dynasty tries really hard to become the simulation cum survival RPG that people want it to be – and despite a few flaws here and there, does manage it quite well (if you manage to forget the RPG aspect of it). If you want to flex your creative mind organizing a living, functioning village from scratch – this game should certainly be up your alley. But if you want a pure RPG that wants to stand apart from the masses with some different mechanics – be sure to look elsewhere.
Expeditions: Rome is a decent game with a huge focus on micro as well as macro-management that makes its mark in the small genre of strategy games. I’d recommend an immediate buy if you like turn-based games and want one with a decent blend of RPG mechanics in it.
Ghostrunner is an awesome game that is challenging, but fun to play and push for completion.
While it's not worth buying at full price, Observer: System Redux is definitely worth getting it on a sale and trying it out. Be warned that the game might not suitable for people with a history of epilepsy or who had suffered seizures in the past.
Despite having quite a few flaws, the game still stands out in the RPG genre, with the game's writing being instrumental in getting it there.