http://www.deadislandepidemic.com/
TBH I haven't looked at it, and I just googled it now: it looks like DI
dumbed toned down for kids.
If you already bought DI through steam, you may get the same 'free' offer x4 I did.
If you still want one of mine, I guess I need your steam id? (never done this so not really sure how)
edit: DI is already pretty dumb.
EDITED: 14 Apr 2015 16:00 by DSMITHHFX