The prestige menu, with soul eggs and Eggs of Prophecy.
Prestige is a reset-based system that allows you to gain major, permanent boosts, but it restarts your chickens, common research, habitats, silos, vehicles, and egg type.
Prestige is unlocked when a mission with soul eggs as a reward is completed.
Prestiging grants you Soul Eggs based on your earnings.
Strategy
After the first 50 Soul Eggs, different strategies exist, but a general rule of thumb is to prestige when the game is slowing down and you have no goals that depend on staying on the current egg.
When you have unlocked the Universe Egg the following process is best for gaining the most Soul Eggs (this assumes all epic research is unlocked).
- Unlock all common research except for the last Wormhole Dampening.
- Run a Legendary Tachyon Prism and two 10x All Active Boosts. Close the game and wait 10 minutes and then the habs will max. (A slightly cheaper option is to run the tachyon with one 10x All Active and two 2x All active boosts, this saves you 3,000 GE).
- The habs will be maxed out and won't grow so you have to unlock the last Wormhole dampening so your habs will grow and you can run chickens.
- Run one of the following boost combos and do your best to run chickens for the entire 10 minutes. If all epic research is complete then you typically can just hold-release-hold-release to make sure you get the whole running chicken bonus of 540x.
1x Jimbo's Best Bird Feed (50x earnings for 10 minutes), 2x Legendary Soul Beacon (500x Soul Eggs for 10 minutes), 2x Legendary Boost Beacon (50x all active boosts for 10 minutes). Cost: 92,500 GE
OR
2x Jimbo's Best Bird Feed (50x earnings for 10 minutes), 1x Legendary Soul Beacon (500x Soul Eggs for 10 minutes), 2x Legendary Boost Beacon (50x all active boosts for 10 minutes). Cost 80,000 GE (Not quite as good as #1 but it's comparable and a little cheaper).
Prestige and repeat as necessary.
Variations of this strategy should be effective at lower eggs also, but depending on the Golden Eggs you have available you may consider less expensive versions of the boosts.
Once you get a lot of Soul Eggs you will notice that you don't gain as many when you prestige. For this reason most players will change to focus on obtaining Prophecy Eggs from contracts and only prestige during 3x or 2x prestige boost events(these events usually occur on weekends).
Prestige Bonus
Prestige Bonus, an Epic Upgrade , gives more Soul Eggs per Prestige. Each level adds 10% more Soul Eggs at restart (e.g. a level 5 would have 50% more Soul Eggs than normal (e.g. 15,000 rather than 10,000)). Prestige Bonus has twenty levels, with a maximum of 200% bonus soul eggs when prestiging.