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Thinking with Time Machine

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Community maps with time machine!
Create your own test chambers and play test chambers created by other community members!
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Tag: Companion Cube
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Showing 31-60 of 524 entries
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Test 13 (Portal 1)
by heyguycalculator
Test chamber 1
by Alastor🎙
TWTM playground v2
by davemackey
Adrian's Time Test 06 - The Tower
by JustGu
Interdiminsional Portal
by prfctstrm479
Glitches
by BigSmartBear
cube factory
by bleck9999
challenge #1
by someone
all the best of portal using time machines
by Quill
steam-portal-portal 2
by madremadre
Lair of the Turrets: Part 1
by EnDronist
A-MAZE-ING beemod level
by Mopishlynx23
Portal Playground
by Cozman601
Predictability #2
by HugoBDesigner
BEE chamber 1
by Beamo
Concept #1
by davemackey
Some good and easy test.
by chwala projektowi ksiezyc
Mini Easy Test :O
by drew
portal 1 in twtm!?!?!?!?!?!?!?!?
by fleaman
Portal KX 5 #2
by SaltE_Fry
easy=hard chamber
by _TheTomuna_
BEE Element Test
by ShogunPlus
Tedious
by Autobot Dalek
suck up!
by Vertl's Gaming
practice test
by King Of The Hill
Eazy
by Fatarick
mini test (auto)
by 4rdk
testing with time machine
by BiliousData
Trapped Worker 1: Ed In The COOP Land
by Zero The Third
A Few Rooms
by TK-421
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