* [http://en.wikipedia.org/wiki/Nonterraqueous English Wikipedia]
* [http://java.cpc-live.com/game.php?id=-N-&title=nonterraqueous Java CPC]
* [http://www.genesis8bit.fr/amstrad/game-rom/amstrad-game.php?prog_id=3241&title=Nonterraqueous&creator=Mastertronic Genesis 8Bit]
* [http://www.video-games-museum.com/en/game/Nonterraqueous/38/3/25854 Video Games Museum]
== Download ==
* [http://tacgr.emuunlim.com/downloads/filedetail.php?recid=631 The Amstrad CPC Games Resource]