Thumbnail does not reflect actual gameplay, it merely displays entities from both mods.

Usage instructions for this can found over on the Earendel / Space Exploration discord:
https://discord.com/channels/419526714721566720/1473279418142298164/1473279455786172457

A copy of the linked message is shown below but please join the thread for convenience:

SESA
pronounced "seesaw"

welcome
to yet another of my unofficial side projects, this time to combine Space Exploration (SE) with Space Age (SA) and see what happens :eyes:

participating
1) update to space exploration 0.7.43
2) unzip the mod and edit the info.json
3) replace any ! quality with ? quality
4) replace any ! space-age with ? space-age

what to expect
1) both universes are separate, you need to go through nauvis every time
2) space platforms and space ships can only exist within their own usual universe
3) resources have not been unified, both mods bring their own holmium for instance
4) you can freely bring items/buildings to the other universe, have fun with electromagnetic plants, foundries, antimatter reactors, etc
5) the tech trees are separate, space exploration does override a few things with space science automatically, but it should be playable
6) for it not to make much sense, i merely made the mods load together and fixed the scripting issues i could find, the rest is up to others
7) consider any space age content completely unofficial, in a future version anything about it could be changed or removed entirely in a whim
8) for me to like hearing about your experiences/suggestions/struggles in here as you are progressing, i appreciate interacting as a modder a lot

compatibility
i guess it will work with some of the simpler planet mods, and people are free to make a mod that better balances the SESA tech/recipes/progression/etc

multiplayer
i have put together a little public server for everyone so we can playtest together, note that quality modules are disabled: sesa.factorio.nydus.app
(some quality of life mods will undoubtedly get added to it over time, but mods that change content probably will not get in)

footnote
well that's about it, have fun experimenting to see what cool new possibilities have opened up, and please keep all the SESA stuff in this thread ^-^
(since it is completely unofficial)

Note that SESA can be played without this sesa mod, (required) changes have been made to Space Exploration in order to make it load and function,
optional changes however are done within this mod for the time being since this mod can update independently of the Space Exploration mod itself.