Portal 2Similar„Start thinking with portals.“
      
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| # | Title | Platform | Developer | Publisher |  Release |
||
|---|---|---|---|---|---|---|---|
| 1. |
|
X360 | Valve | Valve | 2007 | ||
| 2. |
|
NS | Valve | Valve | 2022 | ||
| 3. |
|
PC | Valve | Valve | 2007 | ||
| 4. |
|
X360 | Valve | Microsoft Game Studios | 2008 | ||
| 5. |
|
PC | ClockStone | Headup | 2017 | ||
| 6. |
|
PS4 | ClockStone | Koch Media | 2018 |
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