Interstellar Progression Overhaul

Interstellar Progression Overhaul is a curated Space Age modpack bridge that connects many planet, science, enemy, and endgame mods into one coherent progression route across multiple star systems.

IPO turns a large planet pack into an authored campaign spine instead of a pile of unrelated destinations. The current campaign is organized into five chapter systems:

• Solara — the launch frontier and familiar Space Age bridge
• Myridian — the cold long-range frontier
• Viridion — the specialist exotic branch and outer-board entry
• Pyraxis — the hazard corridor
• Terminus — the deep-space finale

1.2.0 — Science Compression & Stable Starmap

The 1.2.0 release combines Science Compression Polish with the accepted stable starmap candidate.

The protected route authority is:

Lignumis -> Nauvis
Fulgora -> Cerys only
Fulgora -> Viridion Slipstream
Myridian Slipstream -> Aquilo -> Tellus
Foliax -> Crucible Orbit/Approach -> Planet Crucible

Features

• Five authored system chapters with slipstream anchors
• System science packs for chapter mastery
• Science compression pass for large late-research science-pack walls
• Discovery technologies for each campaign chapter
• Cleaner starmap route authority for large planet packs
• Lignumis start path support
• Fulgora-only Cerys route
• Myridian Aquilo placement
• Crucible Approach / Crucible Orbit gating for Planet Crucible

Release focus

This release is focused on progression structure, starmap readability, and late-game science cleanup. The starmap has been frozen from the accepted in-game route review baseline; future 1.2.x work should avoid broad board rewrites unless a specific screenshot identifies a remaining issue.