A revival of BioTech by SlopppyEngineering for Factorio 2.1. Make science packs, rocket parts and power from sand, plants and biomass instead of mining everything out of the ground. It builds on Bio Industries.

Requires Bio Industries 3.0.1 or newer (the first version for Factorio 2.1).
The 2.0.x versions of Bio Tech are for Factorio 2.0 with Bio Industries 2.0.34.

What's in it

Sand ore and sand mining
- Sand ore patches generate in the world, including a small one in the starting area, so you can mine sand directly.
- Sand mining drills are real mining drills. They drop sand like normal drills, rotate, and have a smooth looping animation. There are three tiers, in different colours, plus a burner version.
- You can still make sand from stone, so you have two ways to get it.

Bioreactors
- Basic, Advanced and Elite Bioreactors.
- All three can craft recipes from both Bio Tech and Bio Industries. Better tiers and modules make everything faster.

Photosynthesis panels and the fuel cell
- Three tiers of photosynthesis panels that absorb pollution. The defaults are 8 / 16 / 32, and you can change them in the startup settings.
- The fuel cell burns fuel cell mix to make electricity. You make the mix in a bioreactor from sugar solution and light oil.

Science and materials
- Silica from sand (5 sand per silica) and glass panes from silica (3 silica per pane).
- Cellulose, carbon, optical fiber, test tubes and the other bio materials that the Bio Tech science and rocket recipes use.
- Glass pipes and pipe-to-ground that run side by side with normal pipes.

Works with (all optional)

• Krastorio 2 Greenhouse + Wood Pyrolysis: uses its sand icon, and its greenhouse glass for the photosynthesis panels and the Bio Industries greenhouse. The first panel unlocks together with the glass.
• Crushing Industry: uses its sand and optical fiber icons, makes glass panes take 7 seconds, and adds a recipe that turns 3 Crushing Industry glass into 1 glass pane.
• Oarc Multiplayer Spawn: every new player spawn also gets a sand ore patch.
• Space Age: uses its carbon icon.
• Geothermal: moves the Oil-Based Carbon recipe to Intermediate products.

Settings (startup)

• Pollution absorbed by each photosynthesis panel tier.
• Fuel cell efficiency.

Notes

• This is a revival of an unmaintained mod, so some things may still be rough. Bug reports and ideas are welcome in the discussion tab.
• If you find an exploit or a broken recipe, please tell me.

Credits

• Original mod: SlopppyEngineering
• Graphics and recipes borrowed from Bio Industries, Crushing Industry and the base game
• Sand icon (when installed) from Krastorio 2 Greenhouse + Wood Pyrolysis by ZarSasha