Assertion: video game | /r/HasProperty | developed in 1960
Facets:
value: like spacewar
type: OTHER
Source sentences:
text: The first video games, developed in the 1960s, were not usually commercialised.
text: The first video games developed in the 1960s and early 1970s, like Spacewar!, Pong, and Gotcha (1973), were games implemented on discrete logic and strictly based on the competition of two players, without AI.