Cosmic Frog is a game of collection, combat, and theft on a planetary scale. Each player controls a two-mile-tall, immortal, invulnerable frog-like creature that exists solely to gather terrain from the Shards of Aeth, the fragments of a long-ago shattered world. The First Ones seek to use the lands from the Shards to reconstruct the world of Aeth, and your frogs are their terrain harvesters.
- At the start of the game, your frogs descend from the Aether, the cosmic sea between the worlds, onto a terrain-rich Shard of Aeth. Once on the Shard, you harvest land and store it in your massive gullet. When your gullet is sufficiently full, you leap into the Aether and disgorge your gullet contents into your inter-dimensional vault for permanent storage, then return to the Shard to collect more land. Although your frogs’ collective mission is to gather as much land as possible for the First Ones, your private goal is to prove yourself to be the greatest of their harvesters by delivering to them the most valuable vault. To do this, you have to fill your vault strategically in a manner that both maximizes linear sets of identical lands and maximizes the diversity of lands in your vault at the end of the game.