ValveSoftware / ValveSoftware/Proton

Option to slow game down

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#3,088 9 comments 0 reactions 0 assignees View on GitHub

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Feature Request
Dominant language
C++
Stars
32.8k
Forks
1.6k
PR merge metrics
PR metrics pending

Description

Feature Request

I confirm:

  • [] that I haven't found another request for this feature.
  • [] that I have checked whether there are updates for my system available that
    contain this feature already.

Description

Some old game like Commandos runs too fast on modern Linux PC.
These games often relay on empty loops to delay.
It is better to have an option to slow down the virtual CPU and make those empty loops as slow as an old, like a 486DX chip.

The option can be relative, like 1/2, 1/3, 1/10 of the host CPU speed.
I do NOT need it to be precisely some CPU chip models like 486DX100.

Justification [optional]

Wine is not designed for old games. And slow the virtual CPU down is not needed for normal windows applications.

Risks [optional]

References [optional]

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files, tests, or entry points. Start by locating Proton's existing CPU-timing or game-compatibility work, then determine where a configurable relative slowdown could be integrated; done means an option can slow legacy games by ratios such as 1/2 or 1/10 and is validated with an affected game.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
operating-systems, performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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