So, I've gotten back into factorio recently, and because I like using mods I thought I'd go ahead and share a list of the ones I'm currently using
(I was going to sort these into categories but decided that was a bit too much effort at the moment so they're in alphabetical order. I at least sorted out the library mods into their own section you're welcome)
- AAI Vehicles: technically a collection of mods. Adds a broad assortment of new vehicles to the game. Chaingunner Flame Tank Flame Tumbler Hauler Ironclad Laser Tank Miner Warden
- AAI Containers & Warehouses: Adds 2x2, 4x4 and 6x6 versions of steel chests and the various logistic chests, which have accordingly larger storage space. Link
- Advanced Fishing: Adds a dedicated machine for catching fish, as well as a few new fish types with different amounts of health they restore. Link
- Advanced Solar: Adds some higher tier variants of solar panels and capacitors. Link
- Armor Reach: Makes armor and powered armor give the player a longer reach. Link
- Armored Trains: Adds armored trains and turret wagons. Link
- Armored Biters: Adds a new biter variant, the Snapper, that is more armored and has more health but is slower. Link
- Automatic Train Fuel Stop: Lets you set up train stations that trains will automatically divert to to refuel, so you don't need to refuel them at their regular stations. Link
- Automatic Train Painter: Re-colors trains based on their contents. Link
- Belt Sorter: Adds a circuit condition controlled belt sorter for belt-to-belt sorting. Link
- Better Waterfill: Like landfill but water. Self-explanatory. Link
- Bottleneck: Adds a little indicator on various machines that shows if they're crafting, full on product without being able to output, or short on ingredients. Link
- Bulk Rail Loader: Adds rail loaders and unloaders that can rapidly fill or empty cargo wagons. Link
- Bullet Trails: Adds bullet trails to machine gun type ammo, including assault rifles, vehicles, gun turrets etc. Link
- Cargo Ships: Adds cargo ships that function like trains on water, as well as a nice little boat, offshore oil, and train bridges. Link
- Cargo Ships Graphics: Required for the above to work properly. Has all the textures. Link
- Disco Science: Makes labs light up with the color of the science packs they're currently using. Funky. Link
- Do Robots Build Automatic Trains?: Makes blueprinted trains that were in automatic mode when blueprinted be built as automatic trains, so they don't have to be switched from manual mode. Link
- Early Game Logistics: Adds very early game, very weak versions of logistic and construction robots that you'll probably actively want destroyed by biters when you get their vanilla counterparts. Link
- Equipment Gantry: Adds a way to automatically place things into equipment grids, such as power armor or a spidertron. Link
- Factory Planner: Do the spreadsheets and calculation stuff in-game. Link
- Fireproof Bots: Makes bots not die to fire. Link
- Fireproof Land Mines: Makes land mines not die to fire. Link
- Fireproof Trains: Makes trains not die to fire. Link
- Fluid Wagon Color Mask: You know how train engines can be painted different colors? Like that but on fluid wagons too. Link
- Geothermal: Adds geothermal power. Link
- Infinite Tech: Adds a few more infinitely repeatable technologies, for fun. Link
- Informatron: Lets mods that are set up with it tell you about their features in-game. Link
- Islands World: Adds a new world type that generates many disconnected islands, rather than a continuous landmass with lakes or a single island. Link
- Logistic Gun Turret: Lets you upgrade gun turrets to interface with the bot logistics system by requesting ammo. Link
- Max Rate Calculator: Does what it says on the tin. Link
- Miniloader: Adds 1x1 loaders that can be used to transfer items directly to and from belts. Link
- Nuclear Fuel: Alters the nuclear fuel cycle to differentiate weapons production from fuel production. Also, breeder reactors. Link
- Orbital Scanner: Lets you launch special satellites on rockets to keep sections of the map in view permanently without setting up radars there. Link
- Orphan Finder: Adds a hotkey to show underground pipes and belts without a match. Link
- Power Armor Mk3: Adds two new tiers of power armor with larger equipment grids, and stronger versions of existing equipment to match. Link
- Rampant, Fixed: A modified version of Rampant with more aggressive enemies and a couple more factions that can appear. Link
- Realistic Heat Glow: Makes heat pipes for nuclear reactors glow in a nicer looking way. Link
- Recursive Blueprints: Allows for the automatic deployment of blueprints. Link
- Resource Map Label Marker: Automatically adds markers to the map showing where ores are and the patch's yield.
- Rocket Silo Construction: Makes the rocket silo require a 6-stage in-place construction process. Link
- Shield Projector: Adds a shield projector structure to supplement your walls. Link
- Show Max Underground Distance: Makes underground belts and pipes show the maximum distance they can connect to while you're placing them. Link
- Side Inserters: Allows inserters to rotate by different amounts instead of just 180 degrees. This doesn't sound major but trust me. Link
- Squeak Through: Makes pipes etc. less annoying to work with by letting you squeeze through gaps. Link
- Storage Tank Mk2: Adds an upgraded storage tank with pipe attachments on all 4 corners and slightly higher capacity.
- Text Plates: Adds placeable plates that can be used to write messages. Link
- The Blueprint Designer Lab: Adds a space where you can test out and design blueprints separate from the rest of the world. Link
- The Abandoned Ruins Mod: Adds random pieces of debris and broken down structures scattered around the world for you to reclaim. Link
- Tinted Spaceship: Makes the spaceship from the start of the game change to match the color you set yourself as. Link
- Todo List: Adds an in-game to-do list that you can write in and check stuff off of. Link
- VortiK's Deep Core Mining: Adds deep ore patches that appear from mined out regular ore patches, plus core seams, which can be tapped for more ore that requires more complex processing to use. Link
- Water Consumes Pollution: Makes water tiles absorb some pollution, with lessened effectiveness as they get saturated. Link
- Water Well: Lets you place wells to get water anywhere regardless of bodies of water. Link
Library Mods (aka mods that add nothing but scripts required for other mods to work)