This competition will run in conjunction with the
IEEE Conference on Games 2025.
August 27, 2025 — Anywhere on Earth
(i.e. entries must be submitted by midnight UTC−12)
The CoG 2025 competition will focus on the fully observable
mode of the game. Future competitions may switch to the
partially observable variant.
Please see the main Submission Instructions
for details on how to submit an entry.
⚠️ We strongly recommend submitting your entry well before the deadline.
Non-functioning entries will not be accepted.
Game parameters will follow the default configuration,
except for the following, which will be uniformly randomly sampled
from the ranges below (same as GECCO 2025):
Game duration is fixed at a maximum of 2000 ticks.
Games will run at 20 Hz, giving agents 50 ms per decision.
However, this is a real-time competition: agents may take longer
(but will act on stale information), and if both respond quickly,
the game will run faster.
The plan was to determine the winner via a TrueSkill league
involving all submitted entries plus a small pool of
baseline agents (including sample bots and top entries from GECCO 2025).
While running the TrueSkill league, the results were found to be unstable and often not reflective of head-to-head performance or average win rate.
Final rankings were based on average win rates and confirmed by checking the head-to-head win rates. See Results
Open-sourcing your agent is not required for this competition.
However, we encourage participants to share their code —
for example, by linking to a public GitHub repository —
to support reproducibility and future research.