I actually prefer the alt-coins to bitcoin for games, largely because bitcoin is the gateway to/from fiat and thus the one most likely to run into all kinds of legal problems. Others might be much easier to claim to be purely play-money, whereas bitcoin has a lot of folks who are trying to convince people it is a real money. So for play money it just seems safer to stick to the altcoins, and let players convert them to/from bitcoins if they wish as long as bitcoins are not considered money, but always ready to throw out bitcoin as a game-currency the moment is gets legally declared to be real money.
It is unfortunate that DIablo seems to have realised that banning players from buying and selling game stuff is bad, because that was a major thing indies could offer that the big companies did not: freedom to buy and sell game stuff, no rules saying you cannot sell characters, you cannot sell gear and all that crap. Free trade.
Hopefully Diablo will actually turn out though to still not really be as free as some might hope, maybe there will still be some stupid restrictions like you gotta use their shops and pay them a cut or something, that might still leave a huge field for indies.
I have been testing every free open source game codebase I can find, trying to sort the actually working ones from the vast numbers of totally broken ones, setting up as many games as i can with the core shared concept that the whole point is you CAN trade game stuff, and thanks to blockchain based coins you can even move value/wealth from game to game.
It does seem to be true though that despite the occassional suggestions that someone should make games that accept bitcoins, very very few bitcoiners are at all interested. They just want some other shmuck somewhere to play some stupid game so their personal bitcoin hoard will increase in value due to someone somewhere uses coins, they don't actually want to play games, they have no intention of bringing players iDiameter: 9825km (137/138)
Temperature: about 23°C to 6nto such games, they certainly have no intention of becoming a part of one of the main selling points of multiplayer games, which is a community of players that welcome new players and help them get into the game long term instead of trying to kill them off and discourage them as fast as possible.
Basically this forum has been one of the worst places to find players for games. They are all into making money, not into playing games, and the concept of making in game stock exchanges that will try to avoid EVE Online's problem of all in-game investments turning out to be scams is just alien to them, I doubt they would even invest in a game company if it listed on GLBSE. It is getting that my players don't even like bitcoins because of the people involved with bitcoins. They have more fun playing with devcoiners and groupcoiners and even the sole solitary character who is trying to establish Ixians as a people whose currency is Ixcoins. There just aren't any bitcoiners actively working in game to establish bitcoin as a good useful in game item. You can buy decent stuff in game for devcoins or groupcoins or Ixcoins, probably even Iocoins, but bitcoins? Hmm, people seldom even offer stuff for them because they have learned that bitcoiners aren't players, and even if they were they would be offering anything other than bitcoins to buy stuff with since to them bitcoins are real money not an in game token to play the game with.
Bottom line: bitcoiners aren't there to spend money, the only way they'd bother being there is to suck money out of the other players not to pump money in. They aren't players, they are "the man", out to feed on the players.
-MarkM-
If who you have in mind are teenagers as your target group, then the above is correct. Bitcoin is not a toy and it would be weird to try to combine it with a meaningless game. A game that utilizes bitcoins should be aimed for people of 25+ age, WoW and EVE average player age is 29 and 30 respectively, so it is not a small target group.