Review dated ZENONIA 1 completion-time evidence without mixing the historical DSiWare estimate with unverified early reports for the 2026 Steam restoration.
There is not yet a reliable, transparent completion-time sample for the 2026 Steam restoration. A historical Nintendo DSiWare page advertised more than 40 hours of quests for an older release, while an early fan FAQ summarizes roughly 15–20 hours for the Steam story without publishing a sample list or method. Because those figures measure different products and conditions, this wiki does not present either as the current definitive answer.

Main story
Reliable 2026 sample and rules are still pending.
Open guide →
Additional quests
Track optional content separately from the main path.
Open guide →
All achievements
Steam confirms 44 achievements; completion time is TBD.
Open guide →
Historical comparison
The over-40-hours claim belongs to the older DSiWare release.
Open guide →Current sample status
The current answer is TBD, not zero. The 2026 game released on August 31, and the available early estimate lacks a transparent list of runs, category definitions, platform settings, or proof that all reports refer to the same completion target. A single range without methodology is not enough for a stable wiki fact.
Completion time can only become useful when the page records what “finished” means. Main story, optional quests, all achievements, repeated route exploration, and idle time should not be merged. Version, class, familiarity, and whether dialogue was read also affect interpretation even when exact impact has not been measured.
Main story
An early current fan FAQ summarizes Steam-player reports as roughly 15–20 hours for the main story. That figure is a P2 lead, not a confirmed result, because the page does not expose its sample or completion methodology. It remains excluded from the headline answer.
A publishable current range needs multiple dated player records or a transparent tracking source. Each record should identify the 2026 Steam build, completion definition, whether prior knowledge was used, and whether substantial optional content was included. Until then, the value stays TBD.
Additional content
The official store describes a complete story with quests and restored systems, but it does not quantify optional hours. The historical DSiWare text says “over 40 hours to conquer its quests,” yet that statement belongs to an older Nintendo listing and does not isolate main or optional content. It cannot fill the current additional-content field.
This hub will separate optional quests from required story progress once the boundaries are sourced. It will not inflate a playtime estimate by combining incompatible categories or repeat historical marketing without a version label.
Achievement completion
Steam confirms 44 achievements, but achievement count does not establish how long completion takes. The current source set does not identify missables, route locks, repeated saves, or the time needed for all unlocks. The correct completion-time value is TBD.
Use the achievement guide for the live source and current evidence status. Claims about restarts or multiple endings remain pending because the existence of good-and-evil choices does not prove a specific completion route.
Historical comparison
Nintendo’s historical DSiWare page says the original offers more than 40 hours to conquer its quests. That is a publisher-provided description for the 2010/2011 DSi/3DS-era release, not a measured result for the 2026 Steam restoration. It is preserved here only to prevent search results from being misapplied.
The early Steam fan range is much lower, but the difference cannot be interpreted as proof that the restoration removed content or that one source is wrong. The categories, methods, platforms, and audiences differ. Any direct comparison would be an inference unsupported by the collected evidence.
What a valid sample needs
A future sample should publish the number of runs, median or range, category rules, platform and version, and any exclusions. It should separate first-time play from repeat play and disclose whether timers include pauses or idle periods. Without those fields, a precise-looking number can mislead more than a clear TBD.
Official release video
The official release short confirms the Steam product, not a completion duration.
