Winter!: Prepare for holiday gaming!
An ingenious SRPG that invites you to see just how much you can abuse its mechanics to conquer the post-game content. The actual plot was pretty meh, but the 200(!) hours I wound up sinking into the game attest to just how much stuff to do and the fact that it stays fun after sane people have gone home. If you even think you might like a strategy-RPG, you need to play this.
Game Traits applied to Disgaea 2: Cursed Memories (PS2) by ShadeOfCantor