Achievements

Everything is Crab It was a dinosaur Achievement Guide

Have the final boss die to the Cataclysm Event. Steam condition

Cataclysm achievement quick answer

It was a dinosaur asks for the final boss to die to the Cataclysm Event. The route is not pure burst; it is controlled boss HP, survival, shield/HP state, and meteor timing.

The July 8, 2026 hotfix 1.1.2 is specifically meant to fix this achievement not unlocking, so failed pre-hotfix attempts should be retested on the updated build.

On a new attempt, confirm that Cataclysm delivered the lethal damage. An isolated failure after the update does not by itself establish that the same bug remains.

If you use Burrow to survive, check its duration and restrictions before relying on it during Cataclysm.

Related guides: Cataclysm Final Boss.

Leave the killing blow to the event

The Cataclysm route is relevant because it separates surviving the event from killing the final boss yourself. Reaching the event with the boss alive is only preparation. If an ordinary attack or another damage source finishes the boss first, the event is no longer the stated cause of death. Steam achievement condition

The July 8 hotfix 1.1.2 explicitly addressed this achievement failing to unlock. That gives older failure reports a version boundary; it does not establish that every later failure is a new bug. First distinguish an event-caused kill from an attempt where the boss died near the same time for another reason. July 8 hotfix 1.1.2 Steam achievement condition

Treat Burrow as a survival option to examine, not as the achievement trigger. The Steam wording does not require that evolution, prescribe a boss-health percentage or state a universal meteor-damage value. A route should preserve the required event kill without turning those missing numbers into instructions. Steam achievement condition

FAQ

Does surviving Cataclysm while the boss lives count?

No. The final boss must die to the Cataclysm Event. Survival alone leaves the required boss death missing. Likewise, killing the boss yourself during the event does not establish that the event delivered the lethal damage. Steam achievement condition

Does an old failed attempt prove the achievement is still broken?

No. Hotfix 1.1.2 specifically targeted the unlock issue. An older report belongs to its earlier version; a later attempt still needs the version and the actual killing-blow circumstances before it can establish a recurring problem. July 8 hotfix 1.1.2

Separate the boss balance change from the unlock fix

Version 1.1 adjusted Krabken’s HP, Plating and Cataclysm resistance at different Pressures. That is a separate change from hotfix 1.1.2 addressing the achievement not unlocking. An old guide’s estimate of how much health to leave may depend on earlier boss values, even if the later achievement fix is installed. The announcement does not provide a replacement health percentage or a fixed number of meteor hits. Official 1.1 notes July 8 hotfix 1.1.2

When reviewing a failed attempt, first identify the event that actually finished the boss, then compare the installed version and selected Pressure with the example being followed. If the boss survives the event, the problem is different from an event-caused kill with no unlock. Keeping those observations separate prevents a balance mismatch and a registration complaint from being treated as the same failure. Steam achievement condition Official 1.1 notes July 8 hotfix 1.1.2

Update history

: Separated Krabken’s 1.1 HP, Plating and Cataclysm-resistance changes from the 1.1.2 achievement-registration fix and the event that finishes the boss.