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Great Rebirths — Surged Cores are now paid for Rebirths that were actually worth doing, and the bar rises every era
Surged Machines — a new machine tier unlocked only by Surging, and never taken away by any reset
The Energy tree now runs to 8 Surges and the Cores tree to 5, with 11 new permanent upgrades
6 new Trials, including two that only reveal themselves after your first Surge
No Criticals and No Combo — two new ways a Trial can restrict your run
Buy x100, alongside x1 / x10 / MAX
8 new achievements, including the game's first for beating Trials
Tutorial hints for Surging and for Trials opening up

Trial targets now scale with your permanent power, so they stay a real test no matter how developed your save is
The Energy Core hits harder — deeper compression, a rim flare on impact, and a thicker spark shower that grows with your combo
Click sound now varies slightly in pitch and volume so a fast streak doesn't sound like a machine gun
Trial rewards roughly doubled to match their new targets

Rebirth spamming no longer fast-tracks a Surge — Surged Cores are paid on Rebirths large enough to matter, and that bar climbs with every era
Content unlocked by Surging could be completely invisible at the start of a new era
A capped upgrade would briefly stretch its card when it maxed out
Notifications could overlap the tab bar
A duplicate "MAX" button could appear on the bulk-buy row

The expanding shockwave rings around the Energy Core, replaced by an impact flare on the core itself

please ensure you press new game instead of join otherwise you will create a multiplayer server and some features will break

The Great Rebirth Update