Gravitar
Gravitar is a video game.
In detail
Publication is recorded by Atari, Inc. The recorded date of publication is 1982.
It is associated with United States. Recorded genres are shoot 'em up.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Gravitar”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2646223: Gravitar
Consult the source