Weapon modifications, weapon-channeled psi abilities, character leveling, and dialogue upgrades are separate progression systems in the developer's explanation. The spendable progression loop is described as starting after boarding the train in Early Access and the full game. Actor Dude Bro is named as a contact for learning weapon-channeled psi abilities. The research does not contain a verified catalog of individual modifications, prices, or compatible weapons.
Separate the progression systems first
The September 28, 2026 project-lead reply provides the clearest breakdown of upgrades in the collected material. It distinguishes character leveling from changing a weapon. It then identifies weapon-channeled psi abilities and dialogue-based upgrades as additional channels. Treating all four as a single bench interaction would erase a distinction the developer explicitly makes.
The official store separately confirms weapon modifications and the ability to commit to or mix character archetypes. That corroborates the existence of equipment and character development. It does not independently test every modification or explain its acquisition route. Two official descriptions are useful evidence of the system, rather than a measured build comparison.
Understand the train milestone
The developer explains that the spendable upgrade loop opens after boarding the train in Early Access and the full game. This matters if your experience comes from the standalone demo. Not finding the same spending opportunity there is consistent with the stated scope. It does not by itself identify a bug or an overlooked upgrade station.
That milestone should not be expanded into unsupported instructions. The source does not establish a precise map marker for every future modification purchase. It also does not provide a complete sequence of menu actions, currency prices, and prerequisite upgrades. This guide therefore uses the train as the documented progression boundary, not as the start of an invented shopping route.
Weapon-channeled psi abilities
Actor Dude Bro is named by the project lead as someone associated with learning weapon-channeled psi abilities. This is a supported character name in the research, rather than an inferred trainer identity. The reply distinguishes these abilities from ordinary character leveling. It is useful when trying to understand why different upgrade conversations may concern different systems.
The collected material does not locate that contact on a complete current-build map. It also does not list every ability, its cost, or its compatibility. Those details cannot be filled in from the mere existence of the system. A source-backed overview can identify the category without promising an unverified acquisition guide.
Repairs do not install modifications
The June 2026 patch clarifies that Repair Spray and Repair Device are manually used maintenance items. Their purpose in the documented lesson is repairing a weapon, not allocating character points. Renaming the items also removes the suggestion that carrying them automatically repairs equipment. These repair facts belong to a different task from choosing a modification.
The historical opening example makes that separation concrete. A nearby repair item restores an unusable firearm so the player can shoot an explosive barrel. That example demonstrates maintenance and progression through an obstacle. It does not demonstrate an upgrade purchase or reveal a modification's permanent effect.
Why older mod advice can mislead
Divine Frequency began as a Doom total conversion before becoming a standalone project. Historical coverage already described upgrades in that older conversion. However, an upgrade feature in the legacy project does not locate the same service in the standalone demo. Old station coordinates and routes should remain attached to their original build.
The game's own patch history reinforces the importance of version labels. November 2023 notes explain that changes to GZDoom core files made older saves incompatible. That is evidence of substantial implementation changes over time. It is not evidence that a route or purchase list from a legacy video survives unchanged.
What this overview can answer
Use this page to distinguish the systems and understand the developer's stated train milestone. For durability maintenance, continue to how to repair weapons. For the missing attribute loop, read Strength progression. The sources do not support a best-modification ranking or a complete price list.
Sources
Official screenshots · Steam media gallery · © Abraxaes and respective rights holders. Material statement.