WePlay: Everything Stacks

Every inserter and every loader can now stack items on belts! No more waiting on stack inserters. Your whole factory gets denser, faster belts.

✨ Features

All inserters stack

Every inserter in the game can place stacked items on belts, including burner, basic, long-handed, fast, bulk, and inserters added by other mods.

The size of each belt stack is the smaller of:
- the inserter's hand size, and
- your researched belt stack size.

So an inserter with a hand size of 2 makes stacks of 2, while a bulk inserter with a big hand fills stacks all the way to your researched limit. Inserters with large hands grab an even multiple of the belt stack, so they always drop full, tidy stacks.

All loaders stack

Loaders (vanilla and modded, including AAI Loaders) stack items on belts up to your researched belt stack size.

Belt stack size selector on loaders

Each loader gets a belt stack size selector in its GUI, so you can choose exactly how tall its stacks are, one loader at a time.

🔬 Research

Belt stacking research follows the same tiers as Space Age:

If Space Age is enabled, this mod uses Space Age's own stacking research and doesn't add its own.

🚀 Space Age not required

You can play with only the base game enabled. The mod adds all the belt stacking research for you.

Note: Factorio locks the belt stacking engine feature behind the Space Age expansion, so you need to own Space Age for this mod to load. It does not need to be turned on.

⚙️ Startup settings

• Max belt stack per inserter/loader: a hard cap per entity (default 4). Raise it only if another mod adds stacking beyond 4.
• Loaders stack items: turn loader stacking on or off.

🧩 Compatibility

• Patches inserters and loaders from other mods automatically.
• Works alongside Space Age, Stack Inserters, and AAI Loaders.
• Great for overhaul mods like Krastorio and Space Exploration.