Commander Keen in Goodbye, Galaxy
Commander Keen in Goodbye , Galaxy ( stylized as "Goodbye , Galaxy ! " ) is a two-part episodic side-scrolling platform video game developed by id Software and published by Apogee Software in 1991 for DOS . 
<triplet> Commander Keen in Goodbye, Galaxy <subj> platform video game <obj> genre <subj> id Software <obj> developer <subj> Apogee Software <obj> publisher <subj> 1991 <obj> publication date <subj> DOS <obj> platform