Despite the giant and piling performance issues (presumably because the game is rendered all at once?).
RV is such a fun classic rogue-like, it could've used a better explanation of the kill-cycle (Hide, dash and lunge, hide), and a bit less of the round-a-rosie game.
But in general, it's quite an engaging stealth focused and tactical game.
It isn't doing anything quite new, but what it does; it does well.