The achievement for beating level 9 was not unlocking. This has been fixed but unfortunately we cannot unlock this retroactively because the game doesn't feature a "completion" save. This means if you've already completed level 9 and didn't receive the achievement, you'll have to complete the level once again. Having completed the game, it should start at level 9 until "new game" is selected. Apologies for this and thank you for your continued support.
Patch Notes for March 15th, 2022
Source: Steam Community (opens in a new tab)
Build and release context
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Build 8378106 · public branch
Steam updated · First observed
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