Third-party environment status

Content reviewed 8 November 2026. How this is assessed.

Gantovar and this reference are run by the same operator. Gantovar is excluded from this page, and this page ranks nothing.

Status of each listed project

The list comes from Farama's third-party page, which states that these environments are "not maintained by Farama Foundation" and "cannot be guaranteed to function as intended". Nothing from these projects was installed or run for this page, so a row says nothing about whether the code works. Licence, last push and archived state were read for each project from the public repository metadata API, with no token, on the date in the row.

Rows sort alphabetically and rank nothing. Download status.csv or status.json.

Licence, last push and archived state come from public repository metadata, read on 8 November 2026. Targets come from each project's own declared dependencies.

How targets were classified

For each project, the declared dependencies in pyproject.toml, setup.py, setup.cfg and requirements.txt were read from its default branch. A row shows gymnasium, legacy gym, both, or not found. Not found means none of those files declares either package, which can happen when a project declares them elsewhere or not at all. Totals: gymnasium 49, legacy gym 6, both 3, not found 8.

Licence is the identifier the metadata reports, which can be blank or a generic value even when a licence file exists.

What was left out

The Farama page held 89 distinct project links. 23 were left out after hand review: 7 commercially owned, 3 maintained by Farama, 9 not an environment, 4 organization owner not confirmed as public or non-profit. Names of the excluded projects are not published. 0 were not reachable through the metadata API on the date read.

Over 2 years means the last push is more than two calendar years before the date read. No push is not the same as abandoned, since a finished environment may not need changes.

Sources for this entry

• Gymnasium third-party environments page: The list of projects, and the statement that they are not maintained by Farama. Read on the date shown.

Continue this reading path

• Best RL Environments category guide
• How to choose: an RL environment provider
• Resource directory

Cite this entry

Best RL Environments. "Third-party environment status." Content reviewed 8 November 2026. https://bestrlenvironments.com/third-party-environment-status/