Upgrade your engineer with Builder Bot Start. Begin the game with construction bots from the moment you touch down on the planet to allow your focus to be your factory from step one. You did not crash here, you came with a purpose. The factory must grow. This loadout is focused on building, and does not include military features. You'll start with:
Armor
Power armor Mk.2
Equipment
4 personal roboport Mk.2
4 portable fusion reactors
3 battery Mk.2
Exoskeleton
Night vision goggles
Belt Immunity
Portable Solar Panel
Inventory
Construction Robots
Mod options include number of starting construction robots, and robot movement speed.
Reworked code for Factorio version 1.0 largely thanks to ZeroSerenity's MegaBotStart