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Worldroot: War for Yggdrasil has reached a major milestone: the full production flow now runs from Main Menu to Skirmish, Loading and a fully playable procedurally generated Match. Core RTS systems, fog, combat, construction, resources and Root Wells are all integrated. Prototype migration is complete, and development now moves into F15: AI.

Posted by Britishboy on Sep 13th, 2026

Worldroot: War for Yggdrasil — Production Match Complete, AI Development Begins

Development on Worldroot: War for Yggdrasil has reached an important milestone: the game's production Match scene has now achieved functional gameplay parity with the original development prototype.

For a long time, the Prototype scene acted as the primary environment for testing gameplay systems. As the project grew, however, the real game flow was developed around a separate front end, loading sequence and procedural world generator.

The challenge was then to bring those two halves together without losing the systems already proven in the Prototype.

That migration is now complete.

The current game flow is:

Main Menu → Skirmish Setup → Loading → Procedural World Generation → Match

A generated Match now boots into the complete gameplay runtime rather than depending on the Prototype scene.

The production environment currently supports resource gathering, building placement, construction, multi-worker construction, infantry production, combat, damage and death, fog of war, remembered world state, team vision, world inspection, minimap systems, Root Well capture and the existing economy/progression infrastructure.

Procedural worlds are now fully playable

The procedural map generator was already capable of creating deterministic strategic maps containing roads, forests, Gold deposits, rivers, ridges, passes and Root Wells.

The work during this phase was about ensuring those generated objects were not merely visual.

Trees and Gold deposits now participate properly in the simulation with stable identities and neutral world ownership. They can be inspected, selected and harvested like their authored equivalents.

Generated Root Wells now begin under neutral ownership, participate in fog-of-war memory and can be captured by military units during normal gameplay.

This means the procedural environment is increasingly becoming part of the game simulation itself rather than simply terrain surrounding it.

Fog of war — and a rather expensive forest

One of the more interesting issues uncovered during integration involved the fog-of-war system.

The fog itself was functioning, but moving a unit caused severe periodic frame hitches.

Profiling eventually revealed that the visibility system was doing relatively little work — sometimes changing only a single fog cell — while the remembered-world system was reevaluating more than 2,000 trees and resource objects every time visibility changed.

Most generated resources initially begin with uncaptured remembered-state data, meaning they were accidentally bypassing an earlier optimisation.

The solution was to spatially filter remembered-world updates using the actual region of the fog grid that changed.

A small movement that affects one visibility cell now checks only objects overlapping that changed area rather than scanning the entire generated forest.

The result was a dramatic improvement in runtime performance.

Prototype retirement

Another major goal of this phase was eliminating hidden dependencies on the Prototype scene.

Several systems had historically been created or repaired there during development, including visibility services, simulation identities and combat dependencies.

The production Match now creates and validates its own runtime authorities.

Current startup diagnostics confirm a single authoritative instance of the major gameplay systems, including visibility, fog rendering, minimap access and combat randomisation, with no Prototype test harnesses leaking into production.

The Prototype scene will remain in the project as a development and regression environment, but it is no longer the canonical way to play the game.

The real game is now the real game.

Next: F15 — Artificial Intelligence

The next major development phase is AI.

The initial goal is deliberately modest.

The first CPU behaviour will simply identify its own Stronghold and Worker and issue a legitimate gathering order to collect Wood.

That may sound small, but it establishes several important principles for the AI architecture.

AI players will operate through the same gameplay systems as human players. They will obey ownership, resources, production limits, visibility and navigation rather than bypassing them.

They will not receive hidden map knowledge or free resources.

From that foundation the CPU player can gradually learn to manage an economy, construct buildings, produce armies, capture Root Wells, defend itself and eventually attack opponents.

For the first time, development is moving from building a playable RTS sandbox toward building something capable of playing back.

And that is going to be a very interesting phase.