Thinking with Time Machine is a Portal 2 mod in which you will find and use a Time Machine to create a twin of yourself from the past to help you solve the puzzles. The past self accurately repeats all of the player's actions, creating a unique twist on familiar Portal game mechanics.
User reviews:
Recent:
Very Positive (20 reviews) - 85% of the 20 user reviews in the last 30 days are positive.
Overall:
Very Positive (3,166 reviews) - 83% of the 3,166 user reviews for this game are positive.
Release Date: Apr 18, 2014

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Community-Made Mod

This community-made mod requires that you own Portal 2 .

Click here to learn more about mods on Steam.

Install Thinking with Time Machine

Free Portal 2 Mod

 

Reviews

“Technically the ‘main feature’ in the Thinking with Time Machine mod is a time machine ..., which is great and all but look, LEGS.”
Rock, Paper, Shotgun

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About This Game

Deep within the facilities at Aperture Science lies a secret research laboratory that was locked and closed off... until it was found by robots.

Thinking with Time Machine is a Portal 2 mod in which you will find and use a Time Machine to create a twin of yourself from the past to help you solve the puzzles. The past self accurately repeats all of the player's actions, creating a unique twist on familiar Portal game mechanics.

Features

  • New and unique gameplay
  • Custom content (models, textures)
  • New design
  • Convenient and simple control in the form of a new datapad item
  • Different ways to think about and solve puzzles

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • OS: Windows 7 / Vista / XP
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 2 GB RAM
    • Graphics: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • DirectX: Version 9.0c
    • Storage: 4500 MB available space
    Minimum:
    • OS:
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 2 GB RAM
    • Graphics: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • Storage: 4500 MB available space
    Minimum:
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 2 GB RAM
    • Graphics: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • Storage: 4500 MB available space
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Recent:
Very Positive (20 reviews)
Overall:
Very Positive (3,166 reviews)
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2,026 reviews match the filters above ( Very Positive)
Most Helpful Reviews  Overall
3,245 of 3,823 people (85%) found this review helpful
36 people found this review funny
Recommended
3.3 hrs on record
Posted: April 18, 2014
You can see your feet when you look down

10/10
Was this review helpful? Yes No Funny
326 of 365 people (89%) found this review helpful
Recommended
8.3 hrs on record
Posted: April 18, 2014
Update: Most bugs now appear to be fixed, and if you have any, make sure that first of all you aren't in the beta for Portal 2, since if you are it will CTD as soon as you get past the Valve intro video, if you have sound issues, rebuild the sound cache or do a clean uninstall and reinstall it for the fixed cache direct, make sure you have Portal 2 installed on the same HDD, and if all else fails, verify the integrity of the game cache on both TWTM and Portal 2.

Anyhow, onto the review of the actual game/mod now that I've had time to play it after fixing the bugs;
First of all, if this was a workshop submitted mod (not possible due to the extent of the gameplay and asset changes in some areas, therefore the store mod) it would most definitely be one of the highest rated community campaigns along with 12 Angry Tests and Designed for Danger. It may not be the strongest in terms of pure level design and perfection of the core Portal formula, but it certainly makes up for it through having the most significant gameplay changes to come out of the Portal community yet. If you're a fan of the Portal series, this is definitely a must play, especially considering it's free, you'd struggle to not got any sort of enjoyment out of TWTM, even if you didn't complete it or care for the TM mechanic much.

It doesn't have the strength of a proper retail game which is as to be expected due to the fact it's a community created mod by a couple of guys in their spare time. Most of the downsides amount to length of the mod and levels of polish. If this had been picked up by Valve for instance and given another few months of development time to polish it up and add to it, it could have no doubt been sold as a single player expansion to Portal 2 and have been worth paying money for.

In summary, if you're a fan of the Portal games, play it. It's free, you've got nothing to lose, and there's a very strong possibility you'll like it. Interested in seeing what the developers of the mod go on to do, since this shows a lot of promise from them in getting a job in the industry or creating their own games.
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1,035 of 1,341 people (77%) found this review helpful
23 people found this review funny
Recommended
2.3 hrs on record
Posted: April 18, 2014
Two Girls, one Coop.
Was this review helpful? Yes No Funny
173 of 199 people (87%) found this review helpful
175 people found this review funny
Recommended
1.1 hrs on record
Posted: October 19, 2014
If Valve made games with the number (CENSORED), then this would be the (CENSORED) game in the series.
Was this review helpful? Yes No Funny
205 of 243 people (84%) found this review helpful
164 people found this review funny
Recommended
1.0 hrs on record
Posted: November 3, 2014
You can see your feet when you look down.
69/10
Was this review helpful? Yes No Funny
169 of 205 people (82%) found this review helpful
Recommended
3.9 hrs on record
Posted: April 18, 2014
I seriously have never played any portal 2 mod quite like this. It is incredibly awesome, even in the first few puzzles I have played. I love the new graphics style they have given this mod, with the glassy and polished techy rooms... It's so amazing. It does take a while to get used to the time machine controls.
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72 of 74 people (97%) found this review helpful
22 people found this review funny
Recommended
6.0 hrs on record
Posted: March 30, 2015
Alright, if you ask yourself "Do I need to download this mod"(Which is weird because it's free and almost everyone say it's awesome), this review is gonna show you exactly why you should.

Plot
Ok, so the plot is kind of a meh, and a bit cliche as a time travel story, but the start is amazing as you have already seen in the trailer.

Length
It's not as long as Portal 2, but as it works on the same principle of Co-Op(Think for two players), so the difficulty would make it feel longer.

Difficulty
This mod is much more challanging than the actual game. Really, even Portal 1 isn't hard like some of these chambers. Lovers of challanges, you're gonna LOVE this mod.

Differences From the Base Game
Ok, almost everything is now completley retextured and looks awesome.

Overall
Overall, this is a great mod, very challanging, a bit short, and while Portals are not the main mechanic anymore, you should all play this. It's also free and you can see your legs.
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71 of 74 people (96%) found this review helpful
29 people found this review funny
Recommended
2.9 hrs on record
Posted: June 21, 2015
Pros:
• It's free!
• It runs fantastically with no bugs as far as I'm aware. It looks like it was made by Valve themselves, or as if it was its own game!
• Brand new mechanics. It's not about the Portal Gun, it's about the Time Machine and the Portal Gun.
• You can see your legs!
Cons:
• It's free! The developers of this mod deserves money for their valuable work.
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160 of 206 people (78%) found this review helpful
Recommended
1.3 hrs on record
Posted: April 18, 2014
Just beat the tutorial, I love the mechanics, and the recording thing works very well, of coure they are still working out little bugs, but it was just realased. Plus, it's free! Definitely download it.
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65 of 68 people (96%) found this review helpful
96 people found this review funny
Recommended
2.2 hrs on record
Posted: December 5, 2014
1: You can see your legs
2: Awesome new mechanics
3: YOU CAN SEE YOUR LEGS
4: BEST ENDING EVER
5: YOU CAN SEE YOUR ♥♥♥♥ING LEGS
6: IT'S FREE
7 : LEGS
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Recently Posted
RoboticOmen
2.8 hrs
Posted: October 1
I'm never gonna finish this. Not because I hate it, its because of the constant Crashes that literally won't allow me to progress. The game is good, I like the puzzles, Graphics, and the overall game. But this game is just a Crash sim. Developer, just ♥♥♥♥ing fix this.
Helpful? Yes No Funny
BlivetWidget
1.7 hrs
Posted: September 28
In One Sentence:

Solve Portal-style puzzles in a free, fan-made homage with a new game mechanic.


My Opinion:
***** A top pick
**** I recommend it
*** I like it (with caveats)
** This wasn't for me
* I cannot recommend this to anyone


Gameplay:

Continue using your Portal Gun to solve spacial puzzles. Thinking with Time Machine introduces a new mechanic very similar to the recording devices in The Talos Principle. This free, fan-made mod for Portal 2 allows you to play cooperatively with yourself by recording your actions and letting you play them back at will. Primary game content took me about one and three-quarters hours to complete.


What I Like About This Game:

+ more Portal
+ free
+ neat new Time Machine mechanic


What I Don't Like About This Game:

- puzzle difficulty arose more from timing constraints and exploiting edge-case game behaviors than from good puzzle design
Helpful? Yes No Funny
ianbrobin
4.5 hrs
Posted: September 24
Funnish but confusing.
Helpful? Yes No Funny
RoniAZ1
0.6 hrs
Posted: September 22
Great Puzzles, Great Idea. Now they just need dialog. 8/10
Helpful? Yes No Funny
ExtremeSlash
0.6 hrs
Posted: September 21
Though the mechanics are buggy I think the redeeming feature is that the title was written by Heavy.
Helpful? Yes No Funny
.b:lue.y
0.2 hrs
Posted: September 15
am i supossed to do this?



hey! i THINK you gave me a faulty TIME MACHINE
Helpful? Yes No Funny
-Zac-
0.3 hrs
Posted: September 12
Great mod for a great game
Helpful? Yes No Funny
AntonyPics
2.4 hrs
Posted: September 11
Short but good (An interesting idea)
7/10
Helpful? Yes No Funny
Crazymerio
1.1 hrs
Posted: September 11
THIS Gaem was udder tesh anyone woh pluys dis gaem is stipd
Helpful? Yes No Funny
Alien #58,600
1.2 hrs
Posted: September 10
has the enrgy pellet in the mod custom map creator. yes.
Helpful? Yes No Funny