The short answer
Delverium is now in Steam Early Access. The launch adds biomes, bosses, more crafting and farming options, fishing, cosmetics and achievements beyond the demo. Sagestone says underground building is intentionally restricted; no unlock has been announced. Official modding support, expanded NPC behavior and quests, pets and mounts are still roadmap items.
Why some pages say September 21 and others September 22
The developer specified a simultaneous release at September 21, 1 p.m. PDT / 9 p.m. BST / September 22, 5 a.m. JST. The launch announcement now confirms Early Access is available. The two dates describe timezone differences, not separate content editions.
Sources for this section
- Sagestone Games: Early Access release details and demo import · Checked 2026-09-24 · Published 2026-09-15
- Sagestone Games: Delverium is available in Early Access · Checked 2026-09-22 · Published 2026-09-21
Choose a task the released game supports
| Your interest | Released scope described by Sagestone |
|---|---|
| Build a settlement | Shelters, crafting and NPC recruitment/trading |
| Grow food | Crops, farming, cooking and expanded options |
| Explore beyond the demo | More biomes, bosses and loot |
| Try fishing | Fishing is included in the launch content |
| Wait for official mods or mounts | Those are long-term roadmap items |
Sources for this section
- Sagestone Games: Delverium on Steam · Checked 2026-09-22
- Sagestone Games: Delverium is available in Early Access · Checked 2026-09-22 · Published 2026-09-21
Why can't I build underground?
In a September 22 Early Access discussion, Sagestone called the restriction on building underground an intentional design choice. The developer is considering feedback, but has not announced an unlock condition or a change. If you need a structure now, plan it above ground rather than gathering materials for an underground site. This is based on the developer's reply, not a Kingy gameplay test.
Sources for this section
- Sagestone Games: Underground building: developer explanation · Checked 2026-09-24 · Published 2026-09-22
Set up your first session
Sagestone announced Steam Deck verification before launch. That status does not supply a Kingy frame-rate measurement or a universal settings preset. Exact opening recipes, NPC room requirements and animal handling are still awaiting checked gameplay evidence.
- Resolve your character-import choice before starting; a new world is required after the demo.
- Choose solo or the appropriate co-op session, then inspect the controls shown by your installed build.
- Pick one early task such as a shelter or crafting goal and read its actual recipe requirements before gathering.
- Keep the world name, current task and missing materials in your progress notes.
Sources for this section
- Sagestone Games: Delverium on Steam · Checked 2026-09-22
- Sagestone Games: Early Access release details and demo import · Checked 2026-09-24 · Published 2026-09-15
Your checklist
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Research checked 2026-09-24. This is a source-based guide; Kingy has not independently play-tested these steps. Evidence and coverage.