This mod restricts the game prototypes to greatest common subset of the vanilla base game and the DLC's Space Age mod. The main purpose is to start a game save that can safely be forked into either or both vanilla or Space Age at later convenience.

By design, this mod removes the rocket silo technology, rending the game unwinnable. It also removes all infinite technology researches making the game, well, very much finite. It is intended that the mod should eventually be disabled to play further.

Special technologies

A few technologies are accessible on Nauvis in both vanilla and Space Age, but at different costs. The mod has options (disable by default) to enable those technologies at the highest cost. Normally those technologies are:
- Mining Productivity 3
- Personal Battery Mk 2

However these technologies are not accessible due to incompatible prerequisites (tier 2 and 3 modules):
- Power Armor Mk 2
- Rocket Silo

Special items

Fish does not spoil. Spoilage is not possible without the DLC.