Download Mycelarium
Mycelarium (the 2026 incremental game by PLAN KAPKAN) is sold on Steam and nowhere else that the studio has announced. The full game is app 5181520. The free demo is app 5371480. Both are Windows builds.
| Fact | Value | Status |
|---|---|---|
| Full game | Steam app 5181520 | 1 source |
| Demo | Steam app 5371480, free | 1 source |
| US price on 7 Nov 2026 | $3.99, down from $4.99 | 1 source |
| Browser build | None listed | 1 source |
The only link this page will give you
Open the Steam page for app 5181520 and install from there. The button below goes to that page. A key reseller, a repack, or a “free full game” upload is not a source I will send you to. The store page is also where the 20 percent launch discount was printed, with the words “Offer ends November 10.” That sentence is dated; read the live page before you pay.
The demo is not a checkbox inside the full app. It has its own store entry, released 8 October 2026, and its own trailer. Demo 2.0 on 30 October added Repeller, a save system, and balance changes. Whether a demo save carries into the paid game is not written down. I will not guess that it does.
| Build | Where |
|---|---|
| Full game | Steam app 5181520 |
| Free demo | Steam app 5371480 |
Questions people ask
Is the full game free?
No. The demo is free. The full game had a US list price of $4.99 on 7 November 2026.
Can I play in a browser?
Steam does not list a browser version. The hero on the home page is a trailer, not a playable embed.
Related pages
Demo · Price · Platforms · Requirements
Sources
- Steam store page for Mycelarium — checked 2026-11-07
- Mycelarium Demo on Steam — checked 2026-11-07
- Steam news for Mycelarium — checked 2026-11-07
- PLAN KAPKAN trailer on YouTube — checked 2026-11-07
Checked 2026-11-07.