Emtombed: Competitive

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

Import	from pettingzoo.atari import entombed_competitive_v3
Actions	Discrete
Parallel API	Yes
Manual Control	No
Agents	agents= ['first_0', 'second_0']
Agents	2
Action Shape	(1,)
Action Values	[0,17]
Observation Shape	(210, 160, 3)
Observation Values	(0,255)

Entombed’s competitive version is a race to last the longest.

You need to quickly navigate down a constantly generating maze you can only see part of. If you get stuck, you lose. Note you can easily find yourself in a dead-end escapable only through the use of rare power-ups. In addition, there dangerous zombies lurking around to avoid. Whenever your opponent dies, you get +1 reward, and your opponent gets -1 reward.

Official Entombed manual

Environment parameters

Environment parameters are common to all Atari environments and are described in the base multi-agent environment documentation.

Action Space

In any given turn, an agent can choose from one of 18 actions.

Value	Meaning	Value	Meaning	Value	Meaning
0	NOOP	1	FIRE	2	UP
3	RIGHT	4	LEFT	5	DOWN
6	UPRIGHT	7	UPLEFT	8	DOWNRIGHT
9	DOWNLEFT	10	UPFIRE	11	RIGHTFIRE
12	LEFTFIRE	13	DOWNFIRE	14	UPRIGHTFIRE
15	UPLEFTFIRE	16	DOWNRIGHTFIRE	17	DOWNLEFTFIRE

See environment specification to see more information on the action meaning.

Version History

• v3: Minimal Action Space (1.18.0)

• v2: Breaking changes to entire API, fixed Entombed rewards (1.4.0)

• v1: Fixes to how all environments handle premature death (1.3.0)

• v0: Initial versions release (1.0.0)