Windypool.0

Overview
Windypool.0 is the result of ID's ingenuity.

The games Windypool and WindypooII were combined upon the release of WindypooII: both games now operate in the same setting, but have separate engines.

Players cannot access any features added in the second game without first completing the first game and progressing to the second. However, they cannot be harmed by any entity, item, or function in the second game. Players from both games may interact and trade items common to both games. This is easily accomplished, as both games are set in exactly the same place.

Trivia
Windypool.0 is the first game in which two games in a series were combined to form a larger whole that interacts with itself.