Engine leaked before Penumbra was released?

[MulleDK19]

Ah, nevermind... Did some searching xD Sorry, my bad...

Maybe it's just me... But I can't help seeing similarities between HPL and this page's game's engine?

http://www.unbirthgame.com

I was like WTF, when I saw the script reference: http://www.unbirthgame.com/files/ScriptReference.htm

Example:
StartPlayerLookat
StopPlayerLookAt
CreateParticleSystem
SetLight3DFlickerActive
KillParticleSystem
SetJointControllerPropertyFloat
SetPlayerPose
GivePlayerDamage
AddEntityCollideCallback


Their engine:
void SetPlayerActive(bool abActive);

HPL:
void SetPlayerActive(bool abActive);


And basically all of them.

Exactly the same in HPL.




What the hell is going on here?



They claim it's an engine called KGB (http://www.kpb.com/), written from scratch.

I thought HPL was developed from scratch by Frictional Games? Did you license it to other companies?

Or is it the other way around?



Or did someone steal it?




Or is this what you guys did before Penumbra?