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Mod Free to play App 1636310 Game: Portal 2

Portal: Forbidden Testing Tracks

Q15 · released Oct 10, 2023

Portal: Forbidden Testing Tracks invites you to delve into an exciting community-created modification for Portal 2. Step into the shoes of Rachel as she embarks on a journey guided by the personality core named "SAIC," through the Forbidden Testing Track, Codename: "Quebeck Seven."

Data updated 20h ago
Price
Free
US store
Reviews
36%
1,569 · Mostly Negative
Playing now
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not sampled yet
24h peak
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all-time seen —
Followers
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Steam community hub
Owners (est.)
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from review count
Revenue (est.)
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gross, lifetime · how
YouTube activity
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videos · 30 d
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creators
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views · 1 y
Twitch activity
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avg viewers · 30 d
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hours watched · 30 d
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streamers · 30 d

Product info

from Steam's PICS · read 2h ago
Change number
40,926,822 · seen 2h ago
Public build
24,773,560 · Aug 17, 2026 (2mo ago)
Operating systems
windows, linux
Architecture
—
Install size
11 GB · 5.3 GB download
Install folder
Portal Forbidden Testing Tracks
Controller support
Full
Metacritic
—
Homepage
pftt.online/
Release state
released
Community
hub

Steam Deck

Playable

Tested Sep 30, 2025 on build 12,502,040

  • !Default controller config not fully functional
  • !Display output not correctly scaled
  • ✓Controller glyphs match deck device
  • ✓Interface text is legible
  • ✓Default configuration is performant
  • iExternal controllers not supported primary player

Branches · 3

every build Steam serves for this app
BranchBuildUpdatedDescription
public 24,773,560Aug 17, 2026 · 2mo ago
old_version 12,502,040Oct 21, 2023 · 3y ago Pre remaster
super_old_version 9,273,829Aug 10, 2022 · 4y ago many bugs!

Build history

every build id we have seen on a branch (history starts with our first read)
BuildBranchReleasedFirst seen
24,773,560public Aug 17, 2026 09:373d ago
12,502,040old_version Oct 21, 2023 21:193d ago
9,273,829super_old_version Aug 10, 2022 09:083d ago

Depots · 1

content of the public branch
DepotNameOSLanguageDLC / sharedSizeDownloadManifest
1636311 windows english 11 GB5.3 GB 1874526626920273251

Launch options · 1

ExecutableOSDescription
portal2.exe all

Languages · 1

LanguageInterfaceFull audioSubtitles
English ✓✓—

Packages · 0

all packages
No packages recorded yet.

Bundles · 0

all bundles
Not part of any bundle we know.

Change numbers

all changes
#40,926,822 · 2h ago

Updates · patch notes

Steam announcements tagged as patch notes, linked to the public build they followed
all games →
No patch notes seen yet for this game.