environment gif

This environment is part of the atari environments. Please read that page first for general information.

Import from pettingzoo.atari import pong_v3
Actions Discrete
Parallel API Yes
Manual Control No
Agents agents= ['first_0', 'second_0']
Agents 2
Action Shape (1,)
Action Values [0,5]
Observation Shape (210, 160, 3)
Observation Values (0,255)

Agent Environment Cycle

environment aec diagram


Classic two player competitive game of timing.

Get the ball past the opponent.

Scoring a point gives you +1 reward and your opponent -1 reward.

Serves are timed: If the player does not serve within 2 seconds of receiving the ball, they receive -1 points, and the timer resets. This prevents one player from indefinitely stalling the game, but also means it is no longer a purely zero sum game.

Official Video Olympics manual

Environment parameters

Some environment parameters are common to all Atari environments and are described in the base Atari documentation.

Parameters specific to Pong are


num_players: Number of players (must be either 2 or 4)

Version History

  • v3: Minimal Action Space (1.18.0)
  • v2: No action timer (1.9.0)
  • v1: Breaking changes to entire API (1.4.0)
  • v0: Initial versions release (1.0.0)