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: Very Positive (2,753 reviews)
Release Date: Apr 18, 2014

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Community-Made Mod

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

Click here to learn more about mods on Steam.

Play Thinking with Time Machine

Free Portal 2 Mod

 

Recommended By Curators

"(Mod) 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."
Read the full review here.

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

Just Updated

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
    • Hard Drive: 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).
    • Hard Drive: 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).
    • Hard Drive: 4500 MB available space
Helpful customer reviews
190 of 225 people (84%) found this review helpful
143 people found this review funny
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
69 of 75 people (92%) found this review helpful
1 person found this review funny
2.3 hrs on record
Posted: October 25, 2014
Do you like Portal, but solve every challenge without any effort? Do you like Time Travel Puzzles? If you answered Yes to any of these questions, This is the Mod for you.
Was this review helpful? Yes No Funny
45 of 51 people (88%) found this review helpful
2 people found this review funny
0.9 hrs on record
Posted: November 3, 2014
It's Free to play. You don't need opinions, just play it.
Story 8/10
Gameplay 10/10
Graphics 8/10
Music 7/10
Overall 9/10
Was this review helpful? Yes No Funny
14 of 14 people (100%) found this review helpful
1 person found this review funny
2.7 hrs on record
Posted: October 24, 2014
Thinking with Time Machine is not only a fantastic spin on the ending of Portal 2, it's a great game in it's own right. The new mechanic takes a bit of getting used to but once you do it's fun and challenging. The custom areas and animations are divine (Save for a few graphical bugs.) and y'know what the best part is? It's FREE. TO. PLAY! What else is there to say? Download now! :D
Was this review helpful? Yes No Funny
13 of 14 people (93%) found this review helpful
0.5 hrs on record
Posted: November 3, 2014
Thinking with Time Machine, or T.W.T.M. is a brilliant Portal 2 modification. The mod tries to continue the events after Portal 2 but of course it is unofficial and so this is not the continuation and this is not the third Portal game. However, if you're desperate for a Portal 3 right away, this is your best bet right now. The modification adds new gameplay, and of course one new crutial feature, time travelling. The mod still has Steam workshop and you can create your own testchambers, just like Portal 2 which I found exciting and great! There's a slight change to the graphics which is also good. Overall, I like the modification and think it's great! I reccomend it to anyone but you must play Portal and Portal 2 before you play Thinking with Time Machine as it kind of spoils some of the storyline! Reccomended! Thanks for reading!
Was this review helpful? Yes No Funny
17 of 29 people (59%) found this review helpful
7 people found this review funny
1.4 hrs on record
Posted: October 24, 2014
14/10
Was this review helpful? Yes No Funny
4 of 4 people (100%) found this review helpful
1.6 hrs on record
Posted: November 29, 2014
This is hard to write a review for. Take what I say with a grain of salt.

PROS
  • The concept of a time machine is a good one, and the mod carries it out very well.
  • The chambers look very nice, and they bring a new feel to Aperture.
  • The story behind the mod is a nice one.

CONS
  • Some puzzles are incredibly difficult to carry out, since they require near-perfect timing, specifically Chamber 6 and Chamber 8. This makes them tedious to solve.
  • It's pretty short. I only had about an hour and a half of playtime. I understand it isn't a whole new game, but it is only about one-third the length of the first Portal game. (10-ish chambers)
  • There's no voice acting, except for a few lines at the end. I was kind of hoping there would be a companion of some sort to help guide you through the chambers.


Otherwise, it was a good mod. I would also like to congratulate the developers on Mod of the Week.

TL;DR: A decent mod, albeit short and tedious. I would recommend it.
Was this review helpful? Yes No Funny
4 of 4 people (100%) found this review helpful
1 person found this review funny
1.9 hrs on record
Posted: October 31, 2014
great little add on for portal. very new unique puzzles.
thank you for making this free
Was this review helpful? Yes No Funny
3 of 3 people (100%) found this review helpful
1 person found this review funny
2.5 hrs on record
Posted: October 26, 2014
this game is unique for what it is my computer is desgined for office work but on the highest setting with no antialisaing is dosen't lag its cool how it connected to portal2's ending thumbs up
Was this review helpful? Yes No Funny
4 of 5 people (80%) found this review helpful
1 person found this review funny
1.7 hrs on record
Posted: January 10
I was thinking too hard with time machines and I ended up burning my cpu. I guess this game is okay.. 10/10.
Was this review helpful? Yes No Funny
2 of 2 people (100%) found this review helpful
0.5 hrs on record
Posted: December 15, 2014
Nice. Love portal <3
With Time Machine we must think more
Was this review helpful? Yes No Funny
2 of 2 people (100%) found this review helpful
1 person found this review funny
2.8 hrs on record
Posted: December 2, 2014
Probably the closest we'll get to Portal 3. Overall, a wonderfully satisfying mod.

Weak points of this mod:

- The story is very thin. Don't expect the carefully-planned plot of Portal 1 or 2. It sets the premise but that's about it. It's almost entirely superfluous. The ending is almost nonsensical, but in the end, it's about as sensible as the rest of what passes for a plot. Fortunately, the point of this mod isn't the story.
- It is also quite short. Expect about 1 hour play time. That's understandable, considering the small number of people who made this. But I really enjoyed it, so 9 levels aren't enough!
- The progression of difficulty is a bit out-of-order. The hardest level was about half-way through (level 6, I think), and thereafter things seemed to get easier. But maybe that was just my learning curve.

Strong points of this mod:
- This mod is well made, especially considering the small number of people behind it. The visual style is very nice--it is unique to the mod, but based heavily on Portal 2's graphics, so you still feel that you're in a different section of the same game. Everything is so shiny and smooth! The sound clips and so on are pretty much all from Portal 2 as well. I had no problem with glitchy graphics.
- The time machine mechanism is explained nicely with computer screens that have Bendy demonstrating various skills. Much like the original Portal, the first several chambers are very helpful in building up your skills for the harder levels later on. This is a very useful way of teaching how to use the time machine without changing the feel of Portal too much, because, unlike cube- and button-based testing, it's not at all obvious from the get-go.
- The actual mechanism of the time machine is *very* fun. I feel that it wasn't utilised to its full extent here--there is a lot more that could be done with it. But most of the chambers have multiple solutions, all requiring use of the time machine, so you can play to your strengths and figure things out in a variety of ways.
- Level design is very nice. As in Portal, the early levels make it fairly clear what needs solving, but later ones become more open-ended. Every level has been designed with the time machine strongly in mind. It's quite impressive, when you consider the potential complexity given by the time machine.
- It's free!

Considering the price ($0), this is definitely worth playing. I would absolutely recommend it as a fun mini-continuation of Portal 2. The graphics, mechanism, and level design are all at a very high standard, higher than most games that cost actual money.
Was this review helpful? Yes No Funny
3 of 4 people (75%) found this review helpful
4 people found this review funny
0.3 hrs on record
Posted: December 4, 2014
My thumb. It cannot be lifted any higher.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
0.5 hrs on record
Posted: December 29, 2014
I loved this game but at the end when credits ended game crashed...
Is this suposed to happen or is it just...
Anyways good game see ya later
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
1.9 hrs on record
Posted: December 29, 2014
Pretty short campaign, but the idea is nice.

It's free, so it's worth downloading.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
6.9 hrs on record
Posted: December 19, 2014
it's an awesome mod u should try it
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
2.3 hrs on record
Posted: November 1, 2014
If you liked Portal or Portal 2, and aren't aversed to mods, then you should try this game. Ultimately, the only gripe I have is that it was so short.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
1.3 hrs on record
Posted: November 2, 2014
A good game, short but with a very interesting concept.

This game isn't without its share of bugs, there are a few crashes and glitches to endure - however it's a short and fun addition to the original concept.
Yet only real criticism would be the lack of explanation of what to do when interacting with panels at the start and end of the game. Other than that, well thought out and kept me occupied for a good few hours!
Definitely give this a shot.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
0.9 hrs on record
Posted: October 27, 2014
A great addon to an already amazing game. Though I do suck at this addon it has been fun. It brings the same mind-bending puzzles in Portal 2 but with the twist of time travel. This is a fun addon for those who enjoyed Portal 2.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
1.1 hrs on record
Posted: November 30, 2014
This is amazing, just make the puzzles a little easier, add more chambers to the story, and add beemod 2 instead of 1. Other than that, this mod is AMAZING. Add a boss battle and expand the story a little and add narration also.
Was this review helpful? Yes No Funny