More about Antimatter Dimensions:
General Info: DimensionsTicksAchievements
Pre-Infinity: Soft ResetDimensional SacrificeAntimatter Galaxy
Pre-eternity: InfinityInfinity UpgradesChallengesAutobuyersBreaking InfinityInfinity DimensionsReplicanti
Post-eternity: EternityEternity MilestonesTime DimensionsTime StudiesEternity UpgradesEternity ChallengesTime Dilation
Misc: GuideTerminologyCheating

They are grouped in a single page, since Boosting directly follows Shifting. The hotkey for both is D. Dimensional Shifts/Boosts are before galaxies (and increase production of dimensions).

Dimension ShiftEdit

This resets your run, but unlocks a new dimension for the next run. Each one requires 20 (base) of your highest unlocked dimension. You are able to Shift 4 times every Infinity, but eventually the Infinity Upgrades will skip Dimension Shift (in a normal infinity, not in a challenge).

Dimension BoostEdit

Getting a Dimension Boost resets your run just like a Shift, but doesn't unlock a new dimension (there aren't more to unlock at that point). Each Boost requires the following amount of 8th dimensions:

20 + ((# of Boosts) * 15)

Even if you have enough 8th dimensions to get to the Boost after the one you're on, you will only gain one Boost, until you get the relevant Eternity Milestone. Dimension Boost scaling can be decreased with Studies 211 and 222, reducing the amount of 8th dimensions required per Dimension Boost (normally 15).

In challenge 10, you unlock Dimension Boosts after just two shifts, costing 6th dimensions instead with a different formula:

20 + ((# of Boosts) * 20)


Each of those gives a x2 multiplier to a set amount of dimensions. First Shift doubles only the 1st dimension, second Shift doubles again the 1st dimension and doubles the 2nd, third Shift also doubles the 3rd dimensions, fourth Shift adds the 4th dimension, then first Boost doubles all of those and the 5th dimensions, all the way up to the fourth Boost and every Boost after that, they double every dimension.

There are ways to increase the multiplier above x2, with Time Study 81 increasing the multiplier to 10x. Dimension Boosts can also affect other types of dimensions with studies 82 and 83, and can increase infinities earned from big crunch with study 32. Dimension Boosts are entirely negated in challenge 8.