TURF — Port Mercy and city-inspired districts
A standalone, modified city strategy game derived in part from OpenFrontIO.
This project is not the official OpenFront game and is not affiliated with or endorsed by OpenFront.

© OpenFront and Contributors
Portions Copyright (c) 2024 WarFront.io Team
Portions Copyright (c) 2024–2026 OpenFront Inc. and Contributors

Upstream: https://github.com/openfrontio/OpenFrontIO
Inspected commit: 32e1d0b330bebf380f24a7d6e26dcc6c07712b1c
GameMapImpl, FlatBinaryHeap and PseudoRandom are reused with the changes documented in src/sim/UPSTREAM.md. The continuous territorial frontier adapts OpenFront AttackExecution's actual four-neighbour priority queue and tick-budget algorithm.

The original TURF city, procedural geometry/materials, interface, fictional market economy, cargo/supply rules and campaign logic were created for this derivative work.
No OpenFront proprietary assets, accounts, hosted APIs or multiplayer infrastructure are used.

Code is licensed under GNU AGPL v3.0 only, including upstream additional attribution terms. The full licence and all corresponding source are in the local project. Download the complete corresponding source from https://coke.games/turf/turf-source.zip (included with the local build).

Dependencies:
Three.js — MIT — https://github.com/mrdoob/three.js
Vite — MIT — https://github.com/vitejs/vite
Barlow Condensed and DM Sans — SIL Open Font License 1.1, distributed via Fontsource.

Version 8 uses designed, city-inspired districts for fresh Austin, Amsterdam, London and Chicago games alongside the original Port Mercy. These are fictional game maps, not accurate city replicas. Earlier OpenStreetMap map versions and data remain available for existing saves; see maps/CRAFTED-NOTICE.txt for the distinction. TURF supports street-led city conquest, building conversions, solo play and private rooms for 2–4 humans using the included original TURF server. Solo saves are browser-local; private rooms remain in the running server memory. Public release: https://coke.games/turf/ .

Austin geography © OpenStreetMap contributors, licensed under the Open Database License (ODbL) 1.0. See maps/NOTICE.txt and maps/ for the derived database, raw source and import provenance. Building heights missing from OSM are stylized. Gameplay sites, factions and building roles are fictional.