Game
App 5153220
UFO98
Shadowgate Interactive · released Nov 9, 2026
UFO98 is a retro incremental simulation game set on an isolated Win98 desktop. Decrypt encrypted alien signals, leak top-secret files, and defy an oppressive government to awaken humanity to the truth.
Price
-12%$6.15
$6.99
Reviews
100%
1 · 1 user reviews
Playing now
—
not sampled yet
24h peak
—
all-time seen —
Followers
—
Steam community hub
Owners (est.)
~30
15 – 48
YouTube activity
—
videos · 30 d—
creators—
views · 1 yTwitch activity
—
avg viewers · 30 d—
hours watched · 30 d—
streamers · 30 dProduct info
from Steam's PICS · read 2d ago- Change number
- 40,830,507 · seen 2d ago
- Public build
- 26,589,791 · Nov 11, 2026 (2d ago)
- Operating systems
- windows
- Architecture
- 64-bit
- Install size
- 1.2 GB · 199 MB download
- Install folder
UFO98- Controller support
- —
- Metacritic
- —
- Release state
- released
- Community
- hub · stats
Steam Deck
UnknownNo Deck test results published.
Branches · 1
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 26,589,791 | Nov 11, 2026 · 2d ago |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 26,589,791 | public | Nov 11, 2026 11:23 | 2d ago |
| 26,558,374 | public | Nov 10, 2026 05:50 | 3d ago |
| 26,351,662 | public | Oct 31, 2026 21:09 | 3d ago |
Depots · 1
content of the public branch| Depot | Name | OS | Language | DLC / shared | Size | Download | Manifest |
|---|---|---|---|---|---|---|---|
| 5153221 | all | 1.2 GB | 199 MB | 4100179709106579559 |
Launch options · 1
| Executable | OS | Description |
|---|---|---|
UFO98.exe |
all |
Languages · 16
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| Thai | ✓ | — | — |
| Dutch | ✓ | — | — |
| Spanish - Latin America | ✓ | — | — |
| French | ✓ | — | — |
| German | ✓ | — | — |
| Polish | ✓ | — | — |
| English | ✓ | — | — |
| Korean | ✓ | — | — |
| Russian | ✓ | — | — |
| Spanish | ✓ | — | — |
| Turkish | ✓ | — | — |
| Japanese | ✓ | — | — |
| Simplified Chinese | ✓ | — | — |
| Portuguese - Brazil | ✓ | — | — |
| Indonesian | ✓ | — | — |
| Portuguese | ✓ | — | — |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 1784303 | UFO98 | Store or CD key | -12%$6.15 |
Bundles · 1
all bundles| Bundle | Games | Bundle discount | Price |
|---|---|---|---|
| Alien Algorithm | 2 | -10% | $10.02 |
Change numbers
all changes#40,830,507 · 2d ago#40,781,952 · 3d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
| When | Note | Build | Update size |
|---|---|---|---|
| Nov 11, 2026 | November 11 Patch Notes Bug Fixes Fixed the Proof machine also giving Alien Isotope (purple canisters) every time it finished a run. It now only gives Proof files. Alien Isotope comes only from the Isotope machine. Cleanup Removed the leftover Wishlist button from the demo. Thanks for the feedback, keep it coming! More fixes and early-game balance changes are on the way. |
26,589,791 | -2.0 KB |
| Nov 10, 2026 | November 10 Patch Notes Text & Localization Fixes: Cleaned up and replaced leftover placeholder texts and temporary strings from the demo build with final, polished versions. UI Improvements: Removed outdated tooltips, prompts, and interface references originating from the demo version. General Bug Fixes: Resolved text overflow issues and minor localization inconsistencies to improve overall readability. |
26,558,374 | +0 B |