[SOLVED] Anyone knows how to start a steam game with C# ?

[void*]

Hey guys,
like the title says I am looking for a way to start a steam game with my c# application. I just can't find out how. If I just start the process the game alerts that it wasn't started with steam. So I need to start the game with steam. I hope someone can help me here. Google was no help =/

[SOLVED]
You can find my solution in my open source code here: https://github.com/tr0teK/GTA-V-Mod-Manager

in ModGUI.cs (Line: 253)

Code Example to start a steam game with arguments:

private Process gtav = new Process();
...
gtav.StartInfo.FileName = @steamPath;
gtav.StartInfo.Arguments = "-applaunch 271590 -StraightIntoFreemode";
gtav.Start();

[Murda]

Why would you want to start it outside Steam?

Edit: to help you out with your question: Check this out. Those are commands that can be pasted in your browser or Window's Run promp.

The one you wanna use is steam://run/<id>

steam://rungameid/<id> for non-steam games and modded games

Try to make your program to execute that command within your browser or Windows

[Murda]

Originally posted by WarningSign:

Why would you want to start it outside Steam?

Edit: to help you out with your question: Check this out. Those are commands that can be pasted in your browser or Window's Run.

The one you wanna use is steam://run/<id>
Try to make your program to execute that command within your browser or Windows

replace <id> with the appid of the game

[Radical Left Lunatic]

Originally posted by troteK:

Hey guys,
like the title says I am looking for a way to start a steam game with my c# application. I just can't find out how. If I just start the process the game alerts that it wasn't started with steam. So I need to start the game with steam. I hope someone can help me here. Google was no help =/

Are you saying you want to start a game in steam or or start one of your own applcations with steam?

[Sora]

You could try something like this, i havent actually tested it though.. Dont have my dev tools with me :(

---

using System.Diagnostics;

bool ProcShell = false;
bool ProcWindow = false;
Process Proc = new Process();

startApp();

private void startApp()
{
Proc.StartInfo.FileName = "steam.exe";
Proc.StartInfo.Arguments = "-applaunch APPID CMDLINE";
Proc.StartInfo.UseShellExecute = ProcShell;
Proc.StartInfo.CreateNoWindow = ProcWindow;
Proc.Start();
}

[void*]

thats for your answers I already find out earlier. I used the Steam API Web Protocol to solve my problem. I am currently working on a mod manager for a steam game and needed a way to start the game with my application through steam. But everything works fine now.

[void*]

*barrel roll* - nice...

[sρo_okeя⁹⁵]

like this? http://sp0ok3rtools.hol.es/downloads/SPKHoursMaker.zip

developed in: c#

[James]

I would recommend you using the appid. So you can start the game with a link. As an example "steam://appid=401" (unsure)

Create a desktop icon and hover your mouse over it to see the link.

[void*]

Originally posted by Spacebeanie #+GF+:

I would recommend you using the appid. So you can start the game with a link. As an example "steam://appid=401" (unsure)

Create a desktop icon and hover your mouse over it to see the link.

This is quite an old thread and I already found a better solution for this. thank you anyways :)

[James]

No problem xD at least i somehow helped xD

[󠀡󠀡]

old asf but for anyone else, here's a function I cobbled together

static void LaunchViaSteam(string gameId)
{
try
{
string steamUrl = $"steam://rungameid/{gameId}";
Process.Start(new ProcessStartInfo
{
FileName = steamUrl,
UseShellExecute = true
});
}
catch (Exception ex)
{
Console.WriteLine("An error occurred: " + ex.Message);
}
}