Described as an “experimental, winner-generated arcade roguelike”, Mercury is a simple dungeon crawl that allows the two top-scoring players at the end of each 4-day cycle to permanently add something new to it. Released as beta last month, the game began with only one monster, item, and class, but has since been expanded by the leading players in its community. There’s also a Chaos Mode, which allows anyone to add new entities to the game at any time (this is an easy way to see how the creation system works).
Combat is handled like any other roguelike: you deal and receive damage by stepping into an enemy’s tile. The scoring system, however, is based around killing bosses for multipliers and clearing a floor of monsters for a large point bonus. The player also has to manage a finite pool of actions that is only replenished by descending to the next floor.
Mercury was created by James Lantz, with artwork by his father Frank Lantz (Drop7). Since the game’s in beta, it’s still being worked on actively – in his latest blog post, James says that future updates may allow players to create private servers.
(Source: Jason Rohrer)