Kamisama no Iutoori, Torikago no Tsugai Recommendations
Either you play according to the rules, or you're maimed or worse. And if you lose, you're probably dead. It is vital to trust your partner, but can you really just trust anybody? You will have to decide, but fast!
While Torikago gives you a comrade and links you two with a chain, Kamisama will blindly toss death at you in a smorgasbord of game types. But you won't be safe, either way, so rest assured.