▁the ▁most ▁important ▁German ▁game ▁titles ▁to ▁this ▁day ″ . ▁Under ▁the ▁label ▁Six teen ▁T ons ▁Entertainment , ▁Ralph ▁Stock ▁developed ▁several ▁other ▁games ▁in ▁T üb ingen ▁like ▁Got cha ! ▁( 2 0 0 6 ), ▁The ▁Show ▁( 2 0 0 7 ), ▁and ▁sequ els ▁in ▁the ▁Emer gency ▁game ▁series . ▁In ▁ 2 0 0 9 , ▁he ▁founded ▁a ▁subs idi ary ▁studio ▁in ▁the ▁Media ▁City ▁B abel s berg . ▁Games ▁developed ▁there ▁were ▁published ▁under ▁the ▁name ▁Qu adr iga ▁Games ▁up ▁until ▁ 2 0 1 2 . ▁Since ▁ 2 0 1 7 ▁the ▁studio ▁is ▁based ▁in ▁Berlin . ▁ ▁Social ▁commit ment ▁ ▁Stock ▁works ▁on ▁gam ification , ▁games ▁for ▁health ▁and ▁games ▁for ▁digital ▁education ▁through ▁the ▁division ▁of ▁Prom otion ▁Software ▁GmbH ▁special ized ▁in ▁applied ▁games ▁( Ser ious ▁Games ▁Sol utions ) ▁and ▁shares ▁his ▁experience ▁at ▁trade ▁fair s . ▁In ▁addition ▁to ▁his ▁work ▁as ▁a ▁game ▁developer , ▁he ▁attended ▁the ▁International ▁German ▁Forum ▁on ▁Health ▁and ▁In nov ation ▁( Intern ational es ▁Deutschland forum ) ▁at ▁the ▁request ▁of ▁Ang ela ▁Mer kel , ▁which ▁was ▁held ▁at ▁the ▁German ▁Chan cell ery . ▁Stock ▁also ▁speak s ▁at ▁events ▁like ▁the ▁Lear n te c ▁conference , ▁the ▁Did act a ▁trade ▁fair ▁for ▁the ▁education ▁sector , ▁the ▁B iz play ▁trade ▁conference , ▁the ▁Ser ious ▁Games ▁Conference , ▁and ▁German ▁Dev ▁Days .