, ▁Matthew ▁In man ▁from ▁the ▁com ics ▁site ▁The ▁O at me al , ▁and ▁Sh ane ▁Small . ▁Origin ally ▁proposed ▁as ▁a ▁K ick st arter ▁project ▁seeking ▁US $ 1 0 , 0 0 0 ▁in ▁crow df und ing , ▁it ▁exceed ed ▁the ▁goal ▁in ▁eight ▁minutes ▁and ▁on ▁January ▁ 2 7 , ▁ 2 0 1 5 , ▁seven ▁days ▁after ▁opening , ▁it ▁passed ▁ 1 0 3 , 0 0 0 ▁back ers ▁setting ▁the ▁record ▁for ▁the ▁most ▁back ers ▁in ▁K ick st arter ▁history . ▁At ▁completion ▁on ▁February ▁ 1 9 , ▁ 2 0 1 5 , ▁it ▁had ▁US $ 8 , 7 8 2 , 5 7 1 ▁in ▁p led ges ▁by ▁ 2 1 9 , 3 8 2 ▁back ers . ▁The ▁campaign ▁ended ▁as ▁the ▁fourth ▁most ▁fund ed ▁campaign ▁on ▁the ▁crow df und ing ▁site . ▁The ▁first ▁play ▁test ▁of ▁Ex pl oding ▁K itt ens ▁was ▁recorded ▁on ▁YouTube ▁by ▁Sm osh ▁Games , ▁who ▁had ▁the ▁first ▁deck . ▁The ▁back ers ▁started ▁receiving ▁delivery ▁in ▁late ▁July ▁ 2 0 1 5 ; ▁all ▁back ers ▁received ▁the ▁game ▁by ▁September ▁ 2 0 1 5 . It ▁was ▁followed ▁with ▁the ▁release ▁of ▁two ▁spin - offs , ▁Un stable ▁Un ic orn s ▁and ▁L lam as ▁Un le ashed . ▁The ▁spin - offs ▁were ▁insp iration ▁of ▁the ▁Un stable ▁Games ▁company