Feat: Lemnos Map

[bijx]

Description:

Introduces the Greek island, Lemnos, as a map. The island is both fun and challenging to play (because of the terrain and elevation) and this addition was inspired by Altis from the game Arma 3. The nation names are set based on the real landmarks, towns, and regions.

Please complete the following:

• I have added screenshots for all UI updates
• I process any text displayed to the user through translateText() and I've added it to the en.json file
• I have added relevant tests to the test directory
• I confirm I have thoroughly tested these changes and take full responsibility for any bugs introduced

Please put your Discord username so you can be contacted if a bug or regression is found:

bijx

[coderabbitai]

Walkthrough

Adds a new map "Lemnos": localization entry, manifest and nation asset, registered in the game map enum and categories, client description, default player-counts, playlist weight, and map-generator registration.

Changes

Cohort / File(s)	Summary
Localization resources/lang/en.json	Added "lemnos": "Lemnos" to the map localization object.
Map manifest & assets resources/maps/lemnos/manifest.json, map-generator/assets/maps/lemnos/info.json	New manifest with dimensions/scaled variants and info.json listing 9 nations and the map name.
Game map types & categories src/core/game/Game.ts	Added Lemnos = "Lemnos" to GameMapType and included it in mapCategories.regional.
Client descriptions src/client/components/Maps.ts	Added Lemnos to the exported MapDescription mapping.
Default configuration src/core/configuration/DefaultConfig.ts	Added Lemnos entry to numPlayersConfig with values [20, 15, 10].
Server playlist src/server/MapPlaylist.ts	Added Lemnos to map frequency mapping with weight 3.
Map-generator registration map-generator/main.go	Registered lemnos in the map generation registry.

Sequence Diagram(s)

(omitted — changes are additive registrations and data files without cross-component control-flow changes)

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Add Svalmel #2600 — Adds a new map and touches the same enum, manifest, localization, config, and playlist surfaces.
• Add New York City Map #2542 — Parallel map-add PR updating manifests, map assets, GameMapType, MapDescription, DefaultConfig, and MapPlaylist.
• Add Achiran #2280 — Another PR that modifies the same map-related registries and files when adding a new map.

Suggested labels

Feature - Map

Suggested reviewers

• evanpelle

Poem

🌊 A small isle added to the code,
Nine towns placed on a tiny node.
Lemnos sails into the map parade,
New games to start, new deals to be made. 🎉

Pre-merge checks

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Feat: Lemnos Map' clearly and concisely summarizes the main change: introducing a new map for the Greek island Lemnos.
Description check	✅ Passed	The description is directly related to the changeset, explaining the Lemnos map addition, its inspiration from Arma 3, nation naming, and including screenshots and confirmation of testing and translation updates.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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📜 Recent review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 70e9dd9 and 61754df.

📒 Files selected for processing (2)

• resources/lang/en.json
• src/core/game/Game.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• src/core/game/Game.ts

🔇 Additional comments (1)

resources/lang/en.json (1)

246-247: LGTM! Localization entry added correctly.

The JSON syntax is valid, the format matches existing entries, and "Lemnos" is the appropriate English name for the map. The trailing comma on line 246 and the new entry on line 247 are both correct.

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[bijx]

Playtested a number of times now and can confirm it is good fun, but also pretty hard against the AI nations!

[Tidwell]

You'll want to:

• Add map-generator/assets/lemnos/ info.json and image.png.
• Add lemnos to map-generator/main.go.
• Document your source to CREDITS.md (make sure they have usable license)

[Tidwell]

Also, you might want to shave the size a bit. At 1630x2000 you're a little over the 3 million sq px suggested limit.

[Duwibi]

The map looks very nice! Please also add in the image.png file and info.json file in map-generator.

[iiamlewis]

As someone who ran Arma 3 communities for a long time, this gives nostalgia

[bijx]

@Tidwell I added the files and made the updates in the map-generator, hope that all looks good 👍 I also reduced the map size to 2.4M (1750x1420)

@Duwibi Added it!

@iiamlewis I sort of figured the venn diagrams for openfront enjoyer and arma player would intersect somewhere 🔥

[evanpelle]

thanks!