Define a challenge on a chosen map and try to complete it as fast as you can, or in a limited time. Publish it on the factorio forum (section Maps and Scenarios) to challenge other players, and see if someone can beat your personal record...
Exchange items between forces using special trading chests.
This area selection tool is an extension of the classical copy-paste settings feature, that allows multiple paste on a group of objects in one operation, but also selectively wiping their settings.
A printer to display larg texts and graphics on the ground. A handy way to personalize your map!
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
Directly handcraft items from your inventory or toolbelt by hotkey, without even browsing the recipes list: just grab a stack in your hand and use ALT-1, ALT-2 or ALT-3 to queue 1,5 or 10 more items for handcrafting. Pressing Q to copy item to hand will now handcraft the item if resources are available and the item not in your inventory.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
Sell and buy items/fluids/energy on the universal black market using trading chests/tanks/accumulators, choosing the frequency of exchanges and related fees. You can now sell your overproduction and buy things that you don't want to craft by yourself. You can also use these trading units as a paying shipment system. With the optional TechnologyMarket mod, spend your hard-earned credits to research technologies.
Sell and buy items/fluids/energy on the universal black market using trading chests/tanks/accumulators, choosing the frequency of exchanges and related fees. You can now sell your overproduction and buy things that you don't want to craft by yourself. You can also use these trading units as a paying shipment system.
Large total conversion mods.
Accelerate progressively when starting to run: useful when your max speed is high due to exoskeletons and concrete, and you want to precisely position your character.
Mods introducing new content into the game.