Ronin [official site] is a cool game about cool stealthy murders. It’s a stealth ‘em up about a futureninja taking down a megacorp, hiding in the shadows and striking unseen, then whipping out the ole cybersword and dancing around murdering everyone in simultaneous turn-based cybercombat once you get busted. Chuck Mark of the Ninja, half a cup of rain, Gunpoint, and a neon tube into your mindblender – then step back – and you’ll get the idea.
Or you could play the demo. The game’s not due until May but somehow, some way, the demo has arrived first (cyberninja magic, probably), stepping out of the shadows onto Steam.