Industry WIKI

A flat fee, also referred to as a flat rate or a linear rate refers to a pricing structure that charges a single fixed fee for a service, regardless of usage. Less commonly, the term may refer to a rate that does not vary with usage or time of use.

Miniconomy (also called MC by players) is an online, browser based, economic and trade simulation game developed in the Netherlands. The game has over 141,000 registered players from 100 countries that can play the game in English, Spanish, Danish, Portuguese, German, French and Dutch. As of March 2016, 149 rounds have been completed.

Spiral Knights is a massively multiplayer online game created by Three Rings Design and now owned by Grey Havens. The free-to-play, Java-based game was released in 2011 and is still updated with new content and re-occurring events.