How to easily win the game. Possible use includes farming achievements quickly, so you can play modded without feeling like you missed out on the single player campaign (achievements). This is also a viable victory strategy for Domination victory type.

Single Player*

Civ: ARC
Crew: Scientists
Ship: Fusion Reactor
Cargo: Pioneering

Any world.
Apollo difficulty or lower.

*This strategy could work on a multiplayer game, but these are the conditions I used to achieve victory.

Play with only one other Civ, on any map. For achievements Duel is best. Play with Quick turns.
Domination only. Make sure you make Planetfall on the coast. If you don't simply go to the options and click restart game, unfortunately simply clicking restart game disables achievements, you will need to exit to the menu and setup a new game again (Just play Archipelago or Atlantean maps with lots of water). Works with any affinity. Whenever you are asked which station to support, pick one that adds Culture/Production/Science in that order. You only need to make enough Energy to maintain your budget.

Some of these steps may come up in a slightly different order depending on your yields. Just try to follow along as best you can.

I have added a Checklist Style guide due to variations in yields causing turns to be out of sync, just check each thing off the list when you get to that stage and you will achieve victory!

Any time you are granted affinity you may choose any path you like, though I tend to go for 1 point in Purity, and then devote the rest to Harmony.

=========================================================================

Checklist Guide:

Build:
- Build a Trade Depot.
- Build a Clinic.
- Build a Worker.
- Build a Recycler.
- Build Old Earth Relic.
- Build Laboratory.
- Build Spy Agency. This is the last building you need for this victory. Feel free to build how you see fit now.

Research:
- Research Chemistry.
- Research Engineering or Ecology.
- Research Computing. This is the last tech you need to research for this victory. Feel free to research how you see fit now.

Virtues:
- Chose Adaptive Tactics Virtue.
- Choose Military Industrial Complex Virtue.
- Choose Liberation Army Virtue.
- Choose Special Service Virtue. This is the last Virtue you need for this victory. Feel free to build how you see fit now.

Quests:
- Trade Depots +1 Production.
- Recyclers +1 Food.
- Old Earth Relics +1 Culture.

Additional Tasks:
- Automate Explorer.
- Set City to focus on Food.

==Once you have completed the Spy Agency

- Place City Production the the ongoing Research Developement listed in the Other category.
- Choose Operations Reconnaissance for your Nation Security Project.
- Place one operative in the enemy Capital.
- You can place one operative in your Capital or cities (only if they have Intrigue).
- Choose Establish Network in enemy Capital.
- Choose Siphon Energy. (3-4 times)
- Choose Coup D'etat.

=========================================================================

Rough Timeline Guide:

- Automate Explorer.
- Build a Trade Depot.
- Research Chemistry.
- Set City to focus on Food.
- Build a Clinic.
- Trade Depots +1 Production.
- Research Engineering.
- Build a worker.
- Chose Adaptive Tactics Virtue.
- Research Computing. This is the last tech you need to research for this victory. Feel free to research how you see fit now.
- Build a Recycler.
- Build Old Earth Relic.
- Build Laboratory.
- Choose Military Industrial Complex Virtue.
- Place City Production the the ongoing Research Developement listed in the other category.
- Choose Liberation Army Virtue.
- Recyclers +1 Food.
- Old Earth Relics +1 Culture.
- Build Spy Agency. This is the last building you need for this victory. Feel free to build how you see fit now.
- Choose Special Service Virtue. This is the last Virtue you need for this victory. Feel free to build how you see fit now.
- Choose Operations Reconnaissance for your Nation Security Project.
- Place one operative in your Capital (optional) and another in the enemy Capital.
- Choose Establish Network in enemy Capital.
- Choose Siphon Energy. (3-4 times)
- Choose Coup D'etat.

========================================================================

It is recommended to quicksave the turn before your agent completes the Coup D'etat, in the event of the operations failure, though some may consider this cheating.

So far, I have been able to win in 89 turns on Apollo with a score of 1296 using this method.

First I would like to thank everyone for their comments.

This strategy is not perfect but with the help of the community we can make it a little better.

The following are thoughts taken from the comment section that I feel contribute to the strategy.

--------------------------------------------------------------------------------------------------------------------------------

Note from Starlynk about Intrigue:

"To build up Intrigue faster (instead of siphon enegry): send an agent to the enemy city, establish network, then back to hq and send another agent to the enemy city, establish network, back to hq.. rinse and repeat and you get 5 intrigue real fast. Way too easy to get an Apollo Domination Victory this way."

---------------------------------------------------------------------------------------------------------------------------------

Note from SpielenMachtFrei about time constraint.

"I'm at turn 138 (Apollo) and intrigue in the enemy city keeps going up an d down between 0 and 1.5. I tried both repeatedly siphoning energy and also switching agents and establishing networks but the intrigue won't go up. They have an agent in the city and he/she appears to be doing a good job."

My response @SpielenMachtFrei

There is a point at which the enemy will become very difficult to overthrow. They can build a building that will lower intrigue. You may need to wear him down by putting a spy in every city.

However, if this strategy doesn't work by around Turn 130, it probably will not result in victory.

----------------------------------------------------------------------------------------------------------------------------------

Note from cookiecutter about Culper Lodge.

"...awesome guide, easy strategy to implement. I'm hard pressed to come up with something to further optimise it. the run back and do another establish network does wonders.
Possibly, use a hack satelites or something to increase intrique once, so you can get a culper lodge, in case you want some more nasty agents."

...

"...managed to elude me by having a spy agency, as soon as the enemy has one of those, they will stop you from hitting intrique 5 so you won't be able to do a coup d'etat."

My response @cookiecutter.

Thanks for the comments cookiecutter!

A culper lodge would be a good idea if you feel you have some extra turns to spare. Or if the enemy is keeping the intrigue down in their Capital.
----------------------------------------------------------------------------------------------------------------------------------