Quick answers
- Release time
- Sep 18 at 08:00 PDT / 11:00 EDT / 16:00 BST / 17:00 CEST; Sep 19 at 00:00 JST
- Free demo
- Available on Steam; it includes the full first biome and minigame plus previews of the second biome and minigame
- Demo length
- The developer estimates about 1 hour to reach its end or around 4 hours to explore everything currently included
- Multiplayer
- No. The full game and demo are currently listed as single-player
- Main progression
- Gather resources, craft, unlock technologies, build machines, connect production with pipes, and expand into new biomes
- Story endings
- Four endings and secret areas are tied to the optional Lighthouse investigation
Nightwater release time, price status and free demo
Nightwater is scheduled to unlock September 18, 2026 at 08:00 PDT, 11:00 EDT, 16:00 BST, and 17:00 CEST; the developer's announcement lists 00:00 JST on September 19. Steam still shows the game as coming soon, and the US store does not display a launch price as of September 17.
A free Steam demo has been available since May 8. The developer says it contains the complete first biome and first minigame, plus a preview of the second biome and second minigame. The stated playtime is about one hour to reach the demo's end or roughly four hours to explore everything currently included; those are developer estimates, not this site's measured completion times.
| Question | Current answer | Important limit |
|---|---|---|
| Full-game release | Sep 18 in the Americas and Europe; Sep 19 at 00:00 JST | Exact time comes from the developer's Sep 2 announcement |
| US launch price | Not announced on Steam | Check the storefront at unlock |
| Demo availability | Free Steam download available now | Separate demo app, not the full game |
| Demo scope | First biome and minigame in full; preview of the second biome and minigame | Content can be updated independently of the full game |
How Nightwater's gathering and factory automation work
Nightwater begins with manual gathering on a solitary island. Resource milestones unlock buildings, crafting options, and buffs as technology advances from sticks and stones through the Bronze Age, the Industrial Era, and beyond. Expanding the island reveals new biomes with their own resources and secrets; the official description advertises more than 20 resources and more than 100 buildings, crafts, and buffs in total.
Automation replaces repeated manual work. The developer says players can choose from more than 60 buildings, including farmers, assemblers, and storage units, then connect them with pipes into production chains. Machines can be built without a stated quantity cap, moved, or deconstructed without losing items. The store does not yet publish blueprint costs, production ratios, or the point at which each automation tier unlocks, so this page does not invent an optimal layout.
| Stage | What the player does | What it unlocks |
|---|---|---|
| Forage | Gather a biome's resources manually | Resource milestones, crafts, buildings, and buffs |
| Build | Place farmers, assemblers, storage, and other machines | Larger production capacity |
| Connect | Link machines with pipes into production chains | Automated resource processing |
| Expand | Manifest new island biomes and progress through technological eras | New resources, secrets, and late-game buildings |
Five optional minigames, the Lighthouse and four endings
Nightwater includes five optional incremental minigames to play while the factory runs. Each has its own loop, items, upgrades, and progression, but its rewards feed back into the main factory by unlocking buildings, crafts, and buffs. Optional means they are not presented as a requirement to reach the end; it does not mean their rewards are purely cosmetic.
The Lighthouse provides a separate optional mystery. The developer says any player can reach the end without following the story, but finding the truth behind Nightwater and the Lighthouse is required to uncover all four endings and secret areas. This is a structure description rather than a walkthrough, so no puzzle solution or ending outcome is spoiled here.
| System | Required to reach the end? | Reason to engage |
|---|---|---|
| Five minigames | Described as optional | Their own progression plus buildings, crafts, and buffs for the factory |
| Lighthouse story | No | Hidden clues, four endings, and secret areas |
| Factory automation | Core progression system | Automates resources and supports expansion through the eras |
Windows, Linux, SteamOS and controller status
Windows PC is the only full-game platform currently enabled in Steam's platform flags. macOS is not listed. Steam also lists full controller support and publisher-declared accessibility features including adjustable text size, camera comfort, color alternatives, custom volume controls, adjustable difficulty, no required timed input, and save-anytime support; these declarations are not a hands-on accessibility audit.
Linux needs a more careful answer. The separate Nightwater Demo app currently marks both Windows and Linux as supported, and the full game's product data publishes Ubuntu 18.04/SteamOS 3.0 requirements. However, the full game's Linux platform flag remains off. Until that flag changes or Studio Ashty explicitly confirms the launch build, the safest conclusion is that the Linux demo is available while full-game Linux launch support remains unclear.
| Platform | Full game | Demo | Current conclusion |
|---|---|---|---|
| Windows | Listed | Listed | Confirmed |
| Linux / SteamOS | Requirements published, but platform flag is off | Linux flag is on | Demo supported; verify full game at launch |
| macOS | Not listed | Not listed | No current support record |
| Controller | Full controller support listed | Controller category is listed | Store declaration, not independently tested |
Official Nightwater Windows requirements
The Windows minimum lists an i5-3570, 8 GB of RAM, and a GTX 1650, GTX 1050 Ti, RX 470, or RX 570. The recommended tier moves to a Ryzen 5 5600X, i5-12400, or equivalent six-core processor, 12 GB of RAM, and an RTX 2070, RX 5700, or equivalent graphics card. Both tiers list 10 GB of storage.
No resolution, frame-rate, graphics preset, SSD requirement, or Steam Deck performance target is attached to these components. Steam separately publishes Linux guidance of Ubuntu 18.04 or SteamOS 3.0, a Zen 2 processor, 8 GB of RAM, a GTX 1050, and 5 GB of storage, but the full-game platform-flag inconsistency above still applies.
| Component | Minimum | Recommended |
|---|---|---|
| OS | Windows 10 or later (64-bit) | Windows 11 or later (64-bit) |
| Processor | Intel Core i5-3570, 3.4 GHz, 4 cores | AMD Ryzen 5 5600X / Intel Core i5-12400 or equivalent, 6 physical cores minimum |
| Memory | 8 GB RAM | 12 GB RAM |
| Graphics | NVIDIA GTX 1650 / GTX 1050 Ti or AMD RX 470 / RX 570, or equivalent performance and VRAM | NVIDIA RTX 2070 or AMD RX 5700, or equivalent performance and VRAM |
| Storage | 10 GB available space | 10 GB available space |
Sources and verification
First-party sources were checked on September 17, 2026. Store prices and launch details can change after that date.
- Nightwater on Steamprimary · checked 2026-09-17Supports: release date and current price status, developer and publishers, gameplay, resource, automation, minigame, and story details, full-game feature and accessibility flags, demo availability, official screenshots
- Steam app details for Nightwaterprimary · checked 2026-09-17Supports: full-game platform flags, demo app identity, Windows and published Linux requirements, genres and feature flags
- Steam app details for the Nightwater Demoprimary · checked 2026-09-17Supports: demo release date, demo Windows and Linux platform flags
- Nightwater official websiteofficial · checked 2026-09-17Supports: open-world crafting and automation positioning, technology eras and Lighthouse objective, official demo link, official media
- Studio Ashty: Nightwater release date revealofficial · checked 2026-09-17Supports: exact release times by time zone
- Studio Ashty: The Nightwater Demo is out nowofficial · checked 2026-09-17Supports: demo launch date, demo biome and minigame scope, developer-estimated demo length
- Studio Ashty: Steam Next Fest and publisher announcementofficial · checked 2026-09-17Supports: Irox Games publishing partnership, demo participation in Steam Next Fest