Personally as a gamer and a game dev I feel that the games industry is the perfect place for crypto currencies, especially in the MMO area you only need to search on ebay for game gold to see what I mean
only draw back to MMO systems is the time it takes to develop working large world simulations that can scale to tens of thousands of simultaneous users
hmm "pay to play" subscription/time is a difficult model to get working from all the research I have done and the industry itself it is moving towards the "free to play" with micro transactions which is what we are doing but even so gamers are not stupid and tend to resent paying to much for things or forced to "pay to win" thus you need a lot of beta testing and balancing to get it right
also take into account its not free run/develop games you have costs like game content, coding and testing, licencing for software, music, models, graphics and even the developer accounts for Android or IOS cost so far I have self funded the BlakeZone project since mid 2011 and it has cost roughly £25k and I expect to spend another 3-5k for closed beta and once we get to open beta the first year has a budget of £10k but might do some crowdfunding along way to help pay for things too
I dont feel you can rush at it as it does take time, money and skill with some luck thrown in too *time tell if we got the right mix or not
The mobile market is quicker to develop for but is more competitive so you may need to do a series of games before you hit on one that works, our second title a fantasy MMORPG will most likely focus on mobile market and also WebGL as Unity 5 has added that
single player and basic multiplayer are far quicker to make but the downside is they are one off payment's and you will still be expected to maintain and patch them for ~1-2years after release so yeah swings and roundabouts
for me as a long time gamer game dev does have long hours and can be challenging at times but feels good doing your own thing and can be really fun when its working right
Research try:
World of Warcraft or Star Wars The Old Republic for the most successful "pay to play" games *note both had huge budgets and backing from big names
Pretty much any "free to play" Gunz, WolfTeam, Soldier Front, Drift City, Last Chaos, etc... for the micro transaction type games *often these are from smaller studio's then sold to larger publishers or studios
hope this gives some insight into game development but I am sure you can also do some research about Game Monetization or Mobile Game Monetization.
The Games industry is huge much bigger than Crypto coins (any inc Bitcoin) WoW peaked at about 12 Million subscribers all paying monthly
*not including gambling games as they are an industry themselves
