Longtime game developer David Brevik publicly confirmed this week that he's resigned from free-to-play game maker Gazillion Entertertainment after over six years with the company to pursue his own ventures.

Note that Brevik is widely credited as the creator of Diablo (he co-founded Condor, which became Blizzard North, in 1993) and during his tenure as CEO Gazillion saw outsized success with its Diablo-esque F2P game Marvel Heroes.

Brevik oversaw the game's development, and cited it in as his chief reason for joining Gazillion during a 2011 interview with Gamasutra.

He went on to oversee the game's evolution and eventual relaunch/rebranding last year as Marvel Heroes 2015, a Madden-like naming trick that helped the game overcome its Metacritic woes.

Update: Brevik offered the following comment to Gamasutra on his decision to leave Gazillion: