A list of Altcoins that are used in on-line games.
Hyper - Briefly claimed to be proof-of-play, but were honorable and retracted the claim once the distinction was clarified to them. Not human mined or proof-of-play though they may be considering such elements for a future fork.
Black Dragon Coin - Has a coinbase bonus lottery with terminology themed to align with fantasy RPG terms, but is really just a random block reward structure. Promises to produce games using the coin but so far has not materialized much. Not human mined or proof-of-play.
Flappycoin - Also a coin themed with gaming terminology, with block reward lottery. Used in a few dice type games.
Huntercoin - HUC - The original human mined coin. Fork of namecoin with RTS rules instead of domain name related rules. Not proof of play as all transactions are actually secured via sha/scrypt merge mining.CScoin - Counterstrike themed coin with 5-day traditional PoW mining, followed by staking. They claim they are working on the ability to bet on Counterstrike pvp games in the wallet, to materialize later this month. However this would not be human mining as new coinbases are only created by stake now. Will not be proof-of-play either, as the CS gameplay will not be authenticated in a proof structure, nor used to secure transactions. (It is also likely that the CS servers brought up for bets will not be decentralized and will not be able to operate over any sort of authenticated data structure to provide a verification proof over the bet outcomes, so it seems highly likely that cheating on the bets will be possible.)
Piggy coin - Not sure how this made the list. Traditional scrypt PoW alt aimed at kids. No game related "anything" AFAICT. Certainly no human mine or proof of play.
Battlecoin - The original "multipool coin" and loosely game themed. Arguably the voting mechanism could be considered a "game" that indirectly attempts to claim coinbase transactions of other coins for their miners, but since this is still hash collision based mining I don't think we can reasonably call this human mining. Calling this proof of play would be a stretch, and require a very loose interpretation to qualify, but it does come closer than most other coins.
GameLeague - Staking coin which is working on porting an existing "for fiat pay to play" game to use the coin. It is unclear what their status on this port is. It appears that the game will run on centralized servers and use no proof mechanisms, making it neither human mined nor proof of play.
Motocoin - The only proof of play coin to date. Intended to be human mined, several developers (myself among them) quickly devised effective bots that mostly overwhelmed human production, meaning it is only ostensibly human mine right now. The moto community is working on planning changes to rectify this situation, and restore pragmatic human mining. It remains proof-of-play, in any case, as network transactions are actually secured by proof of game play, despite that game being won primarily by bots. (Some claim they can still mine by hand, but I'm skeptical. If they are doing so they certainly are not doing it with a stock reference wallet!)
Zandagort - Wut? This is not actually a coin, but a game related to HYPER. I'd consider this a duplicate entry of hyper.
SurvivorCoin - Working on a game inside the wallet client. This game was originally intended to be an MMO style, but has now been reduced in scope to just a single player game. It appears that the game has nothing to do with the coin itself, so far, and has no blockchain interaction. This would be like putting tetris on a tab in the bitcoin client, and calling bitcoin "integrated with a game." While semantically true, it is somewhat meaningless until the game actually has some interaction with the coin. There is no indication that they intend to try for either human mining or proof-of-play.
Badgercoin - Another "not sure how it made your list" coin. They have some centralized dice-against-house-edge type games, but nothing integrated to the network. "Just another alt" AFAICT.
I'd really love to be pointed at some other coins that are human mined, proof of play, both, or even something that is similar but uses some other/new/different proof mechanism. However, none of these coins fit that criteria, as none of these coins (besides huc and moto) use anything but traditional work/stake proofs.
How is Huntercoin not proof of play? 80% of the coins are gathered by hunters on a map while 20% are merge mined scrypt/sha256. The merge mining moves the blockchain along. Each block counts as a turn in the game. All moves, chat are recorded in each block. HUC is more advanced than MOTO and a million times more advanced that the other scam coins quoted a few posts above.
I suppose if your definition of proof of play is the entire blockchain is moved along by players completing the map. First one that completes it get the block and the reward. Then MOTO is the first proof of play.
Huntercoin is probably better defined as human mine-able, then MOTO is also in that same category. Confusing?
I think the future is incorporating block chains into games. Then players will have even more reasons to compete in tournaments. $$$$ it may become the next sport on TV.