What was the first video and computer game released?

The first commercially available video game is widely considered to be "Pong," released by Atari in 1972. However, earlier games include "Tennis for Two," created in 1958, and "Spacewar!" developed in 1962 for the PDP-1 computer. As for computer games, "Adventure," released in 1976 for mainframe computers, is often cited as one of the first text-based games that laid the groundwork for future gaming.