Start with the version, not a blanket beta promise
Aetherdeep is devgb’s browser Idle Action RPG: your hero fights automatically while equipment, training and build decisions shape progression. The official page currently lists a 0.34.0 update after 0.17.0. This guide was checked on October 12, 2026, and separates those two published notes.
The detailed inventory, boss-retry and Schema 14 explanations below come from the 0.17.0 release post. The newer 0.34.0 post focuses on equipment, Artifacts and long-term progression and says automated save-migration checks remain stable. It does not republish the full overflow rules or establish the current save-schema number.
Use the older notes to understand the changes they introduced. Do not assume 0.17.0 is the current downloadable build, or that every later beta behaves identically. We have not run an Aetherdeep playtest or imported a save for this article.
A full inventory can turn weaker overflow into Essence
In the 0.17.0 post, devgb describes an earlier inventory problem: new loot could silently remove older items when the bag hit its capacity. The replacement system is described as protecting equipped and valuable items, with weaker overflow loot eligible to become Essence instead of deleting important equipment.
That explains why another drop may not appear as a stored item when the inventory is full. It does not mean every drop is automatically salvaged, every unequipped item is disposable, or every later version uses a known rarity cutoff. The post gives no exact rule for deciding which items count as valuable.
The same update adds clearer capacity information and warnings as space runs low. Its example is 54 / 60; that is an example from the release note, not a universal capacity guarantee for every character or build. Look at the capacity shown in your own game and which equipment is actually present.
If something important appears missing, note the game version, inventory state and affected item before reporting it through the official page. A versioned bug report is more useful than assuming that a published safety fix proves loss is impossible.
More farming between boss attempts can be intentional
The 0.17.0 boss-retry change addresses automatic progression repeatedly attacking a boss before the character has had time to improve. After repeated defeats, the developer says the system allows more farming and progression time before another attempt.
A longer interval between attempts can therefore match the documented adaptive behavior. Check whether ordinary combat and progression are continuing during that interval. This is a way to distinguish the described farming phase from a report that the entire game has stopped; it is not a verified repair for a frozen session.
The release note gives no fixed cooldown, exact number of defeats or guaranteed next-win threshold. This guide does not supply a timer or instruct you to repeatedly force an attempt. The stated purpose is to reduce unproductive retry loops while keeping automatic progression active.
Schema 14 describes an old update, not guaranteed recovery
The 0.17.0 post says its save format moved to Schema Version 14 and retained migration support so older saves should upgrade automatically. The wording describes the intended upgrade path. It is not evidence that every old, damaged or externally edited save has been recovered.
The newer 0.34.0 note still mentions save-migration checks but does not identify its schema version. Consequently, Schema 14 should not be used as a claim about the current save file merely because this guide discusses it.
Before changing storage or testing a different browser, preserve any existing backup you already have and record the version that created the save. This article does not invent an export button, prescribe edits to the save format or claim a tested migration command. If loading fails, the official game page and release notes provide the right context for a report.
Read the stability results as the developer’s tests
devgb reports automated encounters, boss fights, save/reload checks and endurance simulations in the 0.17.0 notes, including runs representing roughly 24 hours and 30 days of progression. The author says those runs found no critical progression corruption. Those are simulated test durations, not a month of Nisu playing the game.
The 0.34.0 post also reports continued automated testing. These statements support a description of the developer’s testing process; they do not guarantee zero bugs, zero lost progress or identical performance on your device. The beta continues to change, so include the version when comparing a symptom with any guide.
Quick help
Is 0.17.0 the latest Aetherdeep beta?
No. When checked on October 12, 2026, the official page also listed 0.34.0. The detailed overflow, retry and Schema 14 rules discussed here come from the older 0.17.0 post.
Why might loot become Essence when my bag is full?
The 0.17.0 developer note describes converting weaker overflow loot into Essence while protecting equipped and valuable items. It does not give an exact valuable-item cutoff or prove that all newer builds behave identically.
Why does the next boss attempt take longer after losses?
The documented adaptive retry system allows additional farming time after repeated defeats. No fixed retry timer or defeat count is specified in that release note.
Does Schema 14 guarantee that my old save is safe?
No. It is the format named in the 0.17.0 update, which says older saves should migrate. The current schema number and recovery of every possible old save are not verified here.
Source and scope
This independent guide draws on Open Aetherdeep on itch.io, checked on Oct 12, 2026. Published requirements and rules come from the linked sources; practice routines and examples are Nisu editorial suggestions.