Homepage includes the following description written by progenitor PreLeyZero:
Mod structure
Exotic Industries is separated in 6 Ages of technology. Each Age has its distinct mechanics and builds onto its predecessor. You start in the Dark-age with nothing but your hands and some burner powered things. Harness the power of steam in the Steam-age and use it to advance your base. Electricity, computer tech and highly advanced machinery await you. To win this mod you will need to uncover some ancient knowledge and build one of various superstructures.
Some features
Over 300 new icons and over 40 new machines from steam powered crusher to exotic matter stabilizer
New defensive and offensive weapons
Unique progression system
An dedicated ingame wiki
Specialised data cables and insulated pipes
Multistructures that need many active components to function
Overhauled resource system, with surface ores and deep veins that require drilling
Alien artifacts
Beacon overhaul
Nuclear power overhaul and fusion power
... and much more!
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Remembrance goes further with Space age integration and novel content plus bugfixes while doing away with the simplified recipes of ESI which it was branched from.
Furthermore the discord has >200 users with many posted screenshots, discussions, etc.