The Steam games Mahjong Pretty Girls Battle & Mahjong Pretty Girls Battle School Girls Edition, which I talked about in the previous page, are on sale. They're really cheap. EDIT: Christmas sale is over, but I bet you´ll see more offers. Also, Zoo, the company that made the games, made Poker Pretty Girls Battle: Texas Hold'em, with all the cast from Mahjong Pretty Girls Battle in swimsuits, looks like not so good game judging from the reviews.
Both mahjong games use characters taken from erotic games, but there's nothing lewd in the game, maybe some clothes, but that's all. Both games are exactly the same (really, they're like twins, better to choose one...), and School Girls Edition looks "softer", safer for certain audiences, still you'll see big breasted ladies in a high amount.
(Not all characters are big breasted, but you know, some people automatically consider fictional characters with big boobs as bad or indecent...)
In the second game, Mahjong Pretty Girls Battle School Girls Edition, all the characters have more clothes, as every girl wears their school uniform.
You don't see the girls in the whole game except when somebody declares something, and what you can see then, is just pics. There's no animation, but there's a really good voice acting which is japanese only, and there are just a few sentences for each character, so could be repetitive and annoying, given enough time. Both games look quite tame to me, considering the girls come from various eroge... Character voices might be deemed as too erotic, looks like in both games the voices of the characters are taken from their original games...
But, well, Steam doesn't sell erotic games. Both Mahjong Pretty Girls Battle games are probably the most "perverted" thing you can find there, which is not too much...
Those games are average at best, but I bought both. And I think they're OK games, decent enogh, given they're the only thing in Steam to play Riichi Mahjong.
You can use an english interface, which is the default, but is not the best, in addition some Yaku names in Shakespeare's language are really weird, to me at least. There's a lot of complaints with its "english". As I can, I play in japanese. Both games have english and japanese.
I would eccomend you to read the steam reviews made by the players..
Life is as beautiful as you want it to be, but it´s only one. That´s why you must not get tired of it. Don´t care if you don´t say something that seems "important" because your mere existence is important for someone.