The Stanley Parable is made by Valve.

Question

The Stanley Parable was a full version of a Source Engine mod. The title was created by two men. He tells MCV that he spent five years tweaking Valve games before he started working on The Stanley Parable.

Hagrid P Hazard · Accepted Answer

The Stanley Parable was a full version of a Source Engine mod. The title was created by two men. He tells MCV that he spent five years tweaking Valve games before he started working on The Stanley Parable.

The Stanley Parable is made by Valve.

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