I have two different idea, first is horse racing what i think first, but i dont find enough reason to bet using dex. I wrote it in irc yesterday so i paste it from there.
http://satoshirat.com/I see this game and then i start think how working like horse racing casino game where players can buy horse, training that and maybe buy some items in later levels what make horses little better, but horses race is "automatically" in race. And same time all players who dont own horse can betting who win or 1st/2nd place.
Then second better idea what coming when i exercise around my city last night
I start think is horse race popular in everywhere in world and i think it is popular only in some countries. But football is enough popular game about everywhere. One game what can make is of course full football manager, but i think its first too wide overall but this idea can make also later to different foodball manager game, maybe later it is good because that is really popular computer/web browser game.
But first smaller version of football manager where everyone can start play free and team have X amount of money. Lets say from championship league. Where all players have X points and X price, good players better skill points and it cost more than bad players. So you need choose you take one or two good player with many bad player or many middle skills players.
Then games is automatically with real life, like if Wigan vs Burnley. One player have choose for his team one of Wigan forward James and one defender Mike and all other players from other Championship leagues teams. Then Wigan win game 3-0 and both James and Mike from Wigan make a goal this team get X points from goals what have make players who is in team but not get points for CryptoLeague standings from last goal what make one of Blackpool player but everyone who have choose this Blackpool player to his team get X points and also money to buy or sell =change players later and make team better to next games.
We can make also football betting with dex. And if we want we can give for this players skill points and have one CryptoLeague where computer make match results. And we can bet both real games and CryptoLeague and there is small version of normal "real" football manager game ready.
There can also have different CryptoLeagues with buy-in and without. Without is free amateur league for everyone and there is some pricepool for champion and then one professional league where is buy-in and bigger pot for winner. And then one league where you can use very small amount of coins=real money to buy players. And all leagues if you make real life betting also you can increase your possibility get points and money to buy better players.
This idea is really easy then move to other games like Formula 1 cars, ice hockey or any game.
I can make point systems etc, but i dont have any coding skills so i can't start make this game alone..
Long message with shit english, but hope everyone can about understand