Faction-Specific Resources for 0 A.D. for Windows

Overview

Faction-Specific Resources for 0 A.D. is a modding utility that gives map and mod designers fine-grained control over which civilizations can access particular resources. Instead of every faction having universal access, authors can restrict or permit resource interactions to shape strategies and scenarios.

Key functions

• Configure which factions are allowed to trade for a resource.
• Define which civilizations may gather or harvest a resource directly.
• Specify which groups are eligible to receive resources as tribute.

Quick setup

To enable faction-based resource rules, update the resource definition files included with your mod. The process involves adding a small access object to the resource's JSON entry that lists factions to permit or block. No engine changes are required — only file edits.

Example (illustrative) JSON fragment:

{
  "resourceId": "stone",
  "access": {
    "permit": ["civ_a", "civ_b"],
    "block": ["civ_c"]
  }
}

After modifying the JSON, save the file and reload the mod (or restart the game) so the new settings take effect.

Implementation notes for modders

• Use the permit/deny (or include/exclude) keys to indicate access rules for that resource.
• Prefer explicit lists to avoid accidental access; if neither key is present, the default behavior applies.
• Keep resource access consistent across maps by reusing shared resource definitions where possible.

Practical uses and advantages

• Create campaign scenarios where only specific factions can exploit a strategic resource.
• Encourage diplomatic or economic interaction by making trade the sole route to certain materials.
• Vary replayability and balance by selectively denying or granting harvest rights to factions.