REKA achievements: known names and public IDs
The 1.0 announcement lists 21 achievements. Steam's public data exposes 21 internal IDs and ten highlighted display names; the remaining names and unlock rules are not invented.

Count and evidence. The developer's release announcement and Steam's public achievement metadata agree on 21. Store data and the global-percentage API are two endpoints from the same platform, not two independent editorial guides. The announcement also says unlocked achievements award decorative plaques.
Ten highlighted names (Steam metadata, single source; possible spoilers). Witch's Castle; Witch's Mansion; Witch's Hut; Witch's Farm; Sage of the Crooked Roof; Sage of the Bauble; Sage of the Tassel; Sage of the Stove; Sage of the Pantry; Baba Jaga. These are display names returned by the store, not guessed translations of internal IDs.
Story-related IDs (Steam global API, single source). Chapter_TrialOfTheChicken, Chapter_Leshy, Chapter_LearningTheRopes, Chapter_Siva, Chapter_HerbalWitch, Chapter_Carver, Chapter_Souls, Chapter_Dziady, Chapter_BJD, Chapter_PreBJD. The Chapter_ prefix is a useful navigation clue, not proof of a specific unlock action or an official numbered chapter count.
Other IDs (same API source). Stat_BBsBuild_500, Stat_BBsBuild_750, Stat_BBsBuild_1000, Stat_20Animals_40Plants, Stat_FindEverything, Stat_FindAllItems, Stat_FindAllOvenRecipes, Stat_FindAllWearables, Stat_FindAllTrinkets, Stat_FindAllBBs, Weird_FillFoodShelf. Numerical suffixes are internal labels, not independently verified thresholds. No ID-to-display-name mapping is assumed.
Planning a completion run. Use the recipe, clothing, building and quest guides for their documented systems. No public complete achievement walkthrough was found to establish missability, retroactive unlocks, hidden conditions or time to 100%. Launch-week global percentages do not reliably measure difficulty.
Sources checked 2026-10-27: Official 1.0 announcement: 21 and plaques; Steam metadata: highlighted display names; Steam global achievement IDs. This is public-source research, not a first-hand playthrough.

Questions
How many Steam achievements does REKA have?
The 1.0 announcement says 21, and the public Steam endpoints agree on that total as checked October 27, 2026.
Are all 21 display names listed here?
No. Ten are returned as highlighted names; all 21 internal IDs are supplied separately without guessing the remaining display names.
Does Stat_BBsBuild_1000 prove the exact unlock condition?
No. It is an internal identifier. Its suffix alone is not a verified requirement or a display-name mapping.
Related REKA pages
Sources checked . Public-source summaries, not a claim of first-hand gameplay testing.