Volleyball Pong

environment gif

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

Import from pettingzoo.atari import volleyball_pong_v2
Actions Discrete
Parallel API Yes
Manual Control No
Agents agents= ['first_0', 'second_0', 'third_0', 'fourth_0']
Agents 4
Action Shape (1,)
Action Values [0,5]
Observation Shape (210, 160, 3)
Observation Values (0,255)

Agent Environment Cycle

environment aec diagram

Volleyball Pong

Four player team battle.

Get the ball onto your opponent’s floor to score. In addition to being able to move left and right, each player can also jump higher to affect the ball’s motion above the net. This is a team game, so a given team must try to coordinate to get the ball away from their scoring areas towards their opponent’s. Specifically first_0 and third_0 are on one team and second_0 and fourth_0 are on the other.

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

Serves are timed: If the player does not serve within 2 seconds of receiving the ball, their team receives -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 Volleyball 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)