[dMoN]

Originally Posted by Erkki

Hmm... part of what seemed Havok is actually something called "Ipion Virtual Physics SDK" (C) Ipion Software GmbH. But I'm confused, because Havok and IPV stuff are in the same subfolder.

Well ipion.com redirects to Havok.com so I guess Ipion was previously havok or something.

Almost.

Valve struck a deal with the small german Ipion Software GmbH in 1999/2000 to license the Ipion physics engine for forthcoming Valve games. Midway 2000 Ipion Software GmbH was bought by Dublin-based rival Havok.com, yet the Ipion code still seems to be used by Valve for Half-Life 2.

I know because I was a team-member of Ipion.