This is a mod for Factorio. Link to Mod Portal Page

Underhaul

Most overhaul mods add complexity, this one reduces it: an UNDERHAUL

This mod re-balances recipes, technologies and ratios for a faster and smoother play-through. It lessens the difficulty spikes of mid-game and end-game (but doesn't remove them!). If you like Factorio but you ain't got time for the grinding, this mod is for you!

This mod aims to cut the time of a play-through in half! Everyone completes Factorio (launches a Rocket) in a different amount of time. But as an example, if someone takes about 30 hours to launch a Rocket, with this mod that time will be shortened to about 15 hours.

Underhaul is for you if:

You like the regular Factorio experience but would like to complete a play-through in less time
You like to speed-run. You find the challenge in going fast
You are annoyed by some recipes having a long crafting time
You are struggling to launch your first rocket because you became lost researching so many expensive technologies (that you might not even need)
You want shorter games with worse graphics made by people who are paid more to work less

Underhaul is NOT for you if:

You expect some of the difficult mechanics to be removed (like oil processing or biters). All difficulty spikes are preserved, they are just not as steep.
You want a real Overhaul mod that adds mechanics and complexity

Balance philosophy:

Make ratios easier to remember
Remove some technologies that are beginner traps
Reduce the number of bonus technologies, but make each bonus technology more significant
Accelerate the early game with some bonus items found in the crashed Space ship
Reduce the feeling of grinding in the mid-game and end-game
Keep most systems. Exploring the different systems of Factorio and their paradigms is fun. Maybe make them easier to use, but don't remove them

Faster start:

More items and equipment survived the crash! Use the items to kickstart your base faster.
Added a new armor: Heavy Armor+ It has a very small equipment grid that is compatible with equipment found on the crashed Space ship
A construction robot equipment kit survived the crash: a personal robot port, constructions bots, portable solar panels, a personal battery. This combined with Heavy Armor+ is essentially Early bots!

Mayor balance changes:

Steel plates cost 3 iron plates instead of 5
Red circuits cost 2 Green circuits + 2 Copper wires + 1 Plastic Bar, instead of 2 Green Circuits + 3 Copper wires + 2 Plastic Bar
Science pack assembler ratio (for Red:Green:Gray:Blue:Purple:Yellow) is 5:5:5:6:6:6, instead of 5:6:5:12:7:7
Copper wire assembler to Green circuit assembler ratio is 1:1, instead of 3:2
Re-worked modules to grant more bonuses and less drawbacks. HOWEVER, beacons are removed (they can be enabled in the mod settings, but the recommendations is to keep them disabled)
Removed technologies that most people don't use: Combat robot, Robot follow, Discharge defense (they can be enabled in the mod settings)

Other balance changes:

Reduced the cost for most wearable equipment
Solar panels are slightly more powerful. Accumulators have greater capacity.
Changed the ratio of solar panels to Accumulator to be exactly 4:1
Made the cost of Nuclear Power (technologies and recipes) more viable for a fast play-through
Reduced the crafting time for a lot of end-game recipes
Many small adjustments here and there to many recipes