1) Virtual economy 2) Windows game
Found on
https://www.crosswordclues.com/clue/perpetuum
Perpetuum is a video game by Avatar Creations Ltd. It is a player-driven persistent-world MMORPG set in a science fiction ground setting. Players pilot customisable robots on various islands connected by several teleports. These islands are either alpha (`safe` from attacks by players) or beta/gamma, meaning players can freely engage each other......
Found on
http://en.wikipedia.org/wiki/Perpetuum
No exact match found.
