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https://github.com/antoinejt/dos-games-steam-launchers

Just a simple collection of minimal C programs to launch some old DOS games from Steam using source ports instead of the original versions via DOSBox
https://github.com/antoinejt/dos-games-steam-launchers

blood bloodgdx chocolate-doom dos heretic hexen hexendd steam

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Just a simple collection of minimal C programs to launch some old DOS games from Steam using source ports instead of the original versions via DOSBox

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# DOS Games Steam Launchers



[![Build](https://github.com/AntoineJT/dos-games-steam-launchers/actions/workflows/main.yml/badge.svg)](https://github.com/AntoineJT/dos-games-steam-launchers/actions/workflows/main.yml)



Just a simple collection of minimal C programs to launch some old DOS games from Steam using source ports instead of the original versions via DOSBox.



---



This thing exists because trusting premade closed source/prebuilt similar launchers is unnecessarily risky since I can do this within a minute.



I'm now providing pre-built binaries, but built exclusively by GitHub machines. \

You can find that in the [releases](https://github.com/AntoineJT/dos-games-steam-launchers/releases) tab.



I'm still fond of the "don't trust anyone on the internet" thing but when GitHub runners will have been compromised, it will cause a lot more problems than just making doubtful binaries for this little side-project.



## What is supported?



- **Blood**

  - [BuildGDX (BloodGDX)](#blood---buildgdx)

- **Doom (1993)**

  - [Chocolate Doom](#doom-1993---chocolate-doom)

- **Heretic**

  - Chocolate Heretic

- **HeXen**

  - **Beyond Heretic** (base game)

    - Chocolate HeXen

  - **Deathkings of the Dark Citadel** (Expansion Pack)

    - Chocolate HeXen

- **Red Faction** (not a DOS game)

  - [Dash Faction](#red-faction)



## Common instructions



### Dependencies



You'll need to have `gcc.exe` in your PATH.



I personally use [MSYS2](https://www.msys2.org/) to have MinGW on Windows, but you can use whatever you want. \

Just don't forget to add `gcc.exe` to your system PATH.



### How to build?



Just run `build.bat` to build every exe files. \

You now have a bunch of exe files.



## How to use?



### Blood - BuildGDX



First, check the section above: you need to build the file yourself.



Since this is a BloodGDX launcher, you'll need `java.exe` to be in the PATH of your system. \

You can download the closed source official [Oracle JRE](https://www.java.com/download/) or the open source OpenJDK prebuilt binaries by [AdoptOpenJDK](https://adoptopenjdk.net/).



Download BuildGDX on [the official website](https://m210.duke4.net/), and put it in your Steam Blood directory.

It must be named `BuildGDX.jar`. \

Rename the original `dosbox.exe` file to whatever you want, for example, `dosbox.exe.orig`. \

Copy the previously compiled `dosbox_bloodgdx.exe` to your Blood Steam folder and rename it `dosbox.exe`.



You can now run the game using the Steam Play button.



![Steam screenshot](.images/Steam_screenshot.png)



### Doom (1993) - Chocolate Doom



- Go to the `base` game subfolder

- Rename `dosbox.exe` to `dosbox.orig.exe` to be able to revert the process without verifying file integrity on Steam

- Copy `dosbox_chocolate-doom.exe` to the `base` folder

- Rename `dosbox_chocolate-doom.exe` to `dosbox.exe`

- Go back to the root game folder

- Create a folder named `chocolate-doom`

- [Download Chocolate Doom](https://github.com/chocolate-doom/chocolate-doom/releases) (the win32 zip one)

- Extract chocolate doom archive to the previously created folder

- Run the game from Steam



### Heretic/HeXen games



For every `dosbox_.exe` file, just rename it `dosbox.exe` to replace the original `dosbox.exe` file (rename the original one to `dosbox.orig.exe` to be able to revert the process without verifying file integrity in Steam).



For the 3 heretic/hexen games supported, the original dosbox.exe file to replace can be found in the `base/` subfolder in the game files.



### Red Faction



Install [Dash Faction](https://github.com/rafalh/dashfaction) in your game directory.



Rename the original `RedFaction.exe` to whatever you want (i.e. `RedFaction.original.exe`) and you're good to go.



Antoine "AntoineJT" Tournepiche