"Rick Seis was sort of Dave's right hand man, programmer, great guy to work with."— Erich Schaefer(src)
- Lord De Seis may be named after him.
- ↑ 2015-09-08, In Their Own Words: An Oral History of Diablo II With David Brevik, Max Schaefer, and Erich Schaefer. US Gamer, accessed on 2015-09-11