🧩 Factorio Mods Guide
Factorio's modding community is one of the most active and creative in gaming, with over 40 million mod downloads on the official mod portal. Whether you want a better UI, a completely new planet to colonize, or a factory so complex it takes months to finish — there's a mod for that.
This guide covers:
- 🛠️ Essential QoL mods — install these before your next playthrough
- 🔄 Overhaul mods — complete game transformations ranked by difficulty
- 🏆 Tier list — which mod to play based on your experience level
🛠️ Essential Quality-of-Life Mods
These mods don't change the core gameplay — they remove frustration, add information, and make building smoother. Every Factorio player should install these.
| Mod | What It Does | Why You Need It |
|---|---|---|
| Squeak Through | Lets you walk between tightly spaced buildings (pipes, solar panels, assemblers) | Factorio's default collision means you will get stuck in your own factory. This is the #1 most-downloaded mod for a reason. |
| Even Distribution | Ctrl+click to evenly split items across assembling machines, furnaces, turrets, etc. | Manually loading 50 furnaces with coal is tedium. This mod does it in one click. |
| Bottleneck | Shows a colored indicator (green/yellow/red) on every building so you instantly see what's working, starved, or blocked. | Debugging a stalled factory without this means mousing over every single machine. Indispensable. |
| Factory Planner | A powerful in-game calculator for production chains. Set a target item/rate, and it shows exact machine counts, belt throughputs, and resource demands. | Far more intuitive than external calculators. The gold standard for planning sub-factories. |
| Rate Calculator | Select a group of buildings, and it shows the aggregate input/output rates. Perfect for checking existing builds. | Quicker than Factory Planner when you just need to verify a build. |
| Helmod | Similar to Factory Planner but with a spreadsheet-like interface. Supports complex multi-step production chains and resource tracking. | Factory Planner is more user-friendly; Helmod is more powerful for massive bases. Pick one — both do the same job. |
💡 Pro tip: Visit the mod portal and sort by "Most Downloaded" for the community's full list of essentials.
🔄 Overhaul Mods — Complete Game Transformations
Overhaul mods replace or massively extend Factorio's tech tree, recipes, and progression. These are not "easy mode" — each adds dozens to hundreds of hours of gameplay.
Difficulty Ratings
| Rating | Meaning |
|---|---|
| 1–3 | Vanilla+ experience; some new recipes but familiar loop |
| 4–6 | Significant complexity; new mechanics, multi-step production chains |
| 7–8 | Expert-level; requires spreadsheets, planning, and Megabase experience |
| 9–10 | Masochist-tier; hundreds of hours, dozens of ores, nested recipe chains |
Overhaul Mods Comparison Table
| Mod | Difficulty | Playtime (First Run) | Pros | Cons |
|---|---|---|---|---|
| Krastorio 2 | 3 / 10 | 60–100h | Clean, polished progression; new weapons (combat rifle, atomic grenades); sand to glass/silicon loop; immersive lore; works as a "vanilla+" expansion | Few cons — some find late-game too easy after the initial complexity curve; no space endgame |
| Industrial Revolution 3 | 4 / 10 | 80–120h | Gorgeous 3D assets; burners → steam → electricity arc is satisfying; unique "tiny machines" for compact builds; excellent balancing | Some recipes feel grindy in early burner phase; requires restarting with the mod (incompatible with existing saves) |
| Space Exploration | 7 / 10 | 250–400h | Massive scope — 4 other star systems, spaceships, arcospheres, energy beams; incredible sense of scale and discovery; tightly integrated with vanilla 2.0 now | Very long; energy beam physics can be punishing; late-game arcosphere puzzle is divisive; can feel overwhelming without a structured plan |
| Bob's Mods + Angel's Refining | 8 / 10 | 200–350h | Deepest production chain complexity; Angel's smelting is unmatched; tons of byproduct management (petrochem, ore processing); extremely modular | Steep learning curve even for Factorio veterans; Angel's petrochem alone is a full-time education; many recipes create waste products you must manage |
| Seablock | 8 / 10 | 300–500h | Unique "build from nothing" on an ocean world; water-based ores + Bob's/Angel's recipes; extremely rewarding progression from algae → massive factory | Starts agonizingly slow; first 10 hours are hand-feeding algae farms; same complexity as Bob's/Angel's but with a unique (polarizing) early game |
| Warptorio2 | 5 / 10 | 60–100h | Entirely different game — your base warps to a new planet every 30 minutes; roguelike urgency; no time to build defensively so you learn to be efficient | Stressful — constant timer pressure is the opposite of standard Factorio; requires aggressive tech rushing; not for casual-building enjoyers |
| Pyanodon's (PySuite) | 10 / 10 | 500–1000+ | The ultimate Factorio challenge. Hundreds of new ores, buildings, and intermediates; actual alien life to farm; incredibly deep | Unbelievably complex — even green science takes 20+ hours; essentially a second job; very few players ever finish; requires PyAlienLife and PyAlternativeEnergy for the full experience |
⚠️ Compatibility note: Most overhaul mods are not compatible with each other unless they were designed to work together (e.g., Bob's + Angel's, Krastorio 2 + Space Exploration is popular but experimental). Always check the mod page for compatibility notes before starting a playthrough.
🏆 Tier List: Which Mod Should You Play?
Not every mod is right for every player. Here's how the overhaul mods map to experience levels:
🟢 Tier 1 — Vanilla Veterans (First Modded Run)
Start here if you've launched a few rockets and want more without a culture shock.
| Rank | Mod | Why |
|---|---|---|
| 🥇 1st | Krastorio 2 | The perfect first overhaul mod. Familiar loop, fantastic polish, new toys. Finishing K2 gives you the confidence to tackle harder mods. |
| 🥈 2nd | Industrial Revolution 3 | If you want a fresh look and feel with a satisfying tech arc. The burner phase is a fun curveball for vanilla players. |
| 🥉 3rd | Warptorio2 | If you want a completely different pace rather than more complexity. A great palate cleanser between long playthroughs. |
🟡 Tier 2 — Experienced Engineers (2–3 Modded Runs)
You've beaten K2 or IR3 and want something that demands planning and scale.
| Rank | Mod | Why |
|---|---|---|
| 🥇 1st | Space Exploration | The definitive "next step" after K2. You'll design spaceships, manage interplanetary logistics, and feel like a real space program. |
| 🥈 2nd | Seablock | A unique challenge that forces you to think about resource generation from scratch. The mid-game payoff is immense. |
| 🥉 3rd | Bob's + Angel's | The pure chemistry and smelting challenge. If you loved managing oil cracking, you'll love Angel's petrochem. |
🔴 Tier 3 — Master Engineers (50+ Modded Hours)
You've built spaceships in SE, solved arcospheres, and want the ultimate challenge.
| Rank | Mod | Why |
|---|---|---|
| 🥇 1st | Pyanodon's (PySuite) | There is nothing harder. If you finish Py, you've done everything Factorio can throw at you. Plan for 6–12 months of real-world time. |
| 🥈 2nd | Pyanodon's + Krastorio 2 (fan merge) | For those who finish Py and still want more. Combines two complex mods into an even denser experience. |
📊 Quick Decision Matrix
| You want to... | Play this mod |
|---|---|
| ✅ Ease into modded Factorio | Krastorio 2 |
| 🎨 See beautiful new art | Industrial Revolution 3 |
| 🚀 Explore space and other planets | Space Exploration |
| ⚗️ Become a chemistry wizard | Bob's + Angel's |
| 🌊 Build a factory from nothing but water | Seablock |
| ⏱️ Play Factorio as a fast-paced roguelike | Warptorio2 |
| 💀 Prove you're the ultimate engineer | Pyanodon's |
🚀 Getting Started with Mods
- Launch Factorio and click Mods on the main menu
- Go to the Install tab and search for mods by name
- Click Install on each mod, then Apply at the bottom
- The mod is active immediately — or you'll need to restart if it's a heavy overhaul
💡 Using mods with Space Age (2.0): As of Factorio 2.0 / Space Age, most major overhauls have been updated or are in active development. Always check the mod portal for the latest version compatibility. Krastorio 2, Space Exploration, and Industrial Revolution all work with 2.0.
Recommended Mod Lists
| Playstyle | Mod List |
|---|---|
| QoL Only | Squeak Through + Even Distribution + Bottleneck + Factory Planner + Rate Calculator |
| Vanilla+ Enhanced | Krastorio 2 + Squeak Through + Bottleneck + Factory Planner |
| Space Program | Space Exploration + Squeak Through + Bottleneck + Factory Planner |
| Expert Chemist | Bob's + Angel's + Squeak Through + Bottleneck + Helmod (you'll need FNEI too) |
| Ultimate Challenge | Pyanodon's + Squeak Through + Bottleneck + Helmod + FNEI + What is it really used for? |
| Roguelike Run | Warptorio2 + Even Distribution + Squeak Through |
🔗 Useful Links
| Resource | Link |
|---|---|
| Factorio Mod Portal | mods.factorio.com |
| Official Wiki: Modding | wiki.factorio.com/Modding |
| Reddit r/factorio Mod Discussions | reddit.com/r/factorio |
| Factorio Mods Discord | discord.gg/factorio |
| Krastorio 2 Official Guide | krastorio.fandom.com |
| Space Exploration Wiki | spaceexploration.miraheze.org |
🛒 Buy Factorio on Steam — One of the highest-rated games on Steam (98% positive). No DRM, no microtransactions, just pure factory automation.
Mod information verified against the official Factorio Mod Portal as of June 2026. Playtimes are estimates based on community reports for first-completion runs.