Groups

 

Space aliens

Creatures theme

Features (sentient) extraterrestrial alien creatures.

Alternate name: Extraterrestrials

The first video game about Space aliens was released in 1971.

Sega, Electronic Arts and Activision has published most of these games

Sentience isn't very important limiter here, although preferable since alien animals/monsters are a bit different thing.

There may be some merit in having <i>sentient aliens</i> group to split this apart, but there should first be proof that there are enough cases where both _don't_ appear in the same game (which I find unlikely).