The OpenSolaris Games community has opened. It exists to list games, provide install instructions, develop new games, and to give us an excuse to play games.
There are tons of games out there that will work on OpenSolaris. These include RougeLike games, such as NetHack, Angband, ZAngband, ToME, etc, and ports of the Doom engine. I've linked to a modest collection on the website, which will gradually grow as others help out.
Please post game URLs to the mailing list, and help out where you can. There are many games and many genres, and to cover them properly on a website will need a lot of help from the OpenSolaris community.
So far, most of the games are hosted on Blastwave - thanks to Dennis and team for making them available.
I have actually written games in the past, although they wern't very good games. These include xpong written entirerly in dtksh, and a port of "Hunt the Wumpus" as an mdb loadable module. I'm also helping with other projects to write decent games, including a curses based shoot-em-up written by Boyd; more on that later.