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 Challenges
Misc: Guide
Time Dimensions generate Time Shards. When you get enough Time Shards, they will form a free tickspeed upgrade that isn't lost until Eternity. Time Shards are only lost on eternity.

At base, each tickspeed upgrade requires 33% more than the previous, starting at 1.

Dim # Price Price Increase
1 1 3
2 5 9
3 100 27
4 1000 81

Each upgrade of a TD will double its power.

When the cost of a TD exceeds 1.8e308, its price increase multiplies by 1.5 and its price recalculates for the new scaling. When it exceeds 1e1300, the scaling changes again the same way as before, with price increase going to 2 times the initial value.