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Reverts all Space Age changes to technologies and recipes, so a base-game save can be transitioned seamlessly.

This mod does not move or remove Space Age-exclusive content, so don't confuse it with mods like Only Nauvis.

All of the technologies and recipes are changed back to base costs (and I mean all of them), so balance is shifted considerably towards the player. Alternative mods can be found at the bottom.

Things like Mk3 Modules and Artillery are available on Nauvis instead of being gated behind their new Space Age recipes.

It probably won't be compatible with mods that add a lot of content to Space Age (and it wouldn't make sense to use it anyway).

The goal is that a pre-DLC save should be able to load with Space Age + this mod, and the technology tree will be identical before reaching the "Space platform" technology.

Make sure you click "Load" and not "Load & Fix", or Factorio will migrate certain items away.

Expensive First rocket

The first rocket launched will use the base game cost of 100 Rocket parts and 10 items per part (thus 1,000 of each ingredient), and display a Victory screen. After this, rockets will switch to using the cheaper Space Age recipe.

Other Changes

Menu simulations are replaced with the base simulations to avoid spoilers, but they can be changed back in the settings.

Also has startup settings to revert Quality modules, Epic + Legendary qualities and the Recycler to their non-Space Age costs (from when the Quality mod is played on its own).

Uninstalling

IMPORTANT: If you want to uninstall the mod before having launched any rockets, or you just dislike the expensive first rocket mechanic, run this command:

/btb_revert_silos

to change all the rocket silos back and prevent future ones being converted.

Compatibility with Satellite

If you want Space science factories to remain working (using the Satellite), you have two options:

• Use Give My Satellite Back mod.
• OR Classic Rocket Silo with only the "Re-add Satellite for Space Age" startup setting checked.

Doing this will create a duplicate "Space science pack" technology, and the base game's infinite technologies will depend on it instead.

Other compatible mods

• No More Quality will hide any mention of the quality mechanic from the game.

Alternative Mods

It's likely that you might just want to change a select few technologies, so here are some mods made by other people:

• Cliff Explosives Rebalance or Quezler's mod for just Cliff Explosives.
• Artillery Revert
• Vulcanus unlocks at Nauvis, both Cliff explosives and Artillery.
• Early Recycling adds a second Recycler for Nauvis.
• Quality Unlocked from Start, no technologies required, includes the Recycler.
• Early Base Game Recycling, same as above but just the Recycler.