Puzzle Strike Online
The online version of Puzzle Strike now has rules-enforcement, meaning the game knows the rules. That makes it quite a bit easier to play and allowed us to clean up the interface a lot too. The screen doesn't need a bunch of buttons to do every possible thing because the game knows how to keep track of your gem pile, ongoing chips, and everything else for you. There's no AI to play against yet, but other players will be happy to walk you through the game if you're new. (If you like the game, there's also the physical version.)
Yomi
Yomi has had an online rules-enforced version for a while now, and we're still actively developing it. It does have an AI bot so you can learn the basics there before you try playing against real people. Also, you still have about 3 weeks left to get free Yomi Cursed Cards if you pre-order the next print run of the game that will ship in late May.
Flash Duel
I'm working on a second edition of Flash Duel that has a whole bunch of gameplay modes and a lot of new characters, too. It won't be done for a while, but it needs your help testing it. You can see a thread about it here, and maybe mock up the game yourself with a few decks of playing cards and a reference sheet:http://forums.sirlin.net/showthread.php?t=4972
Also, here's some in-progress art for the powerful dragon who can take on 4 other players at once:
Chat
There's a new sirlin.net web chat you can get to by clicking the blue button in the sidebar on the right. You're especially welcome if you're looking for Flash Duel opponents, ha. A lot of development for all my games goes on there, so if you're interested in getting involved, check it out. I think a lot of players have kind of become designers just by playtesting and discussing how to fix balance of various things while maintaining whatever feel those things were supposed to have.