SRB2Kart Dedicated Server Hosting – Part 3

With everything in place let’s automate the server so we can be lazy and not have to start it manually every time.

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SRB2Kart Dedicated Server Hosting – Part 2

On the last post we successfully created a vanilla server of srb2kart that runs 24/7. Now you and your friends are having a fun time playing races with the base characters.

But what about custom characters? What about funny mods? Let’s add those to the server!

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SRB2Kart Dedicated Server Hosting – Part 1

So you’ve decided to host a dedicated server 24/7 so you can play with your friends without having to leave your machine running but have no idea where to start. There’s so many questions on how to do this and you get thrown words at you like LINUX, DIGITAL OCEAN, CLOUD, VULTR, 24/7 SERVER but none of them make sense to you.

That’s why I wrote this guide to help with setting up a dedicated cloud server from scratch. Hopefully by the end you can get a server up and running with these steps.

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Acrobatics Documentation

Current Version: v0.5 [Augmented-Burst-Storage System]
by Angular

This page is also a work-in-progress – mind the work zone for a while.

Download it here.

[The message board is the current v0.4 stable release, not v1.]

What is this?
Acrobatics allows for absurd aerial antics in SRB2Kart – Charge a spin in midair, and land to get cool and nice bonuses! There are 3 styles to suit different playstyles.

[general gif of bing bappin around]

How to Trick – Race

Press and HOLD the [TRICK] button (BRAKE by default) to start a trick in midair!
You need to be ascending to start one in a Race.

[gif of meter starting]

Build the meter by holding down [TRICK]. Aim for the little purple for best results! If you overshoot, release the [TRICK] button.

[gif of wiggling meter bar]

Don’t have the [TRICK] button held when you hit the ground! Tony Hawk’s watching you.

[gif of trickfail 1]

Don’t OVERCHARGE [be in the red]! You’ll do a micro- mini-spinout [Depending on severity].

[gif of trickfail 2]


[gif of zippin, maybe 2]

  • BURST — Release your charge for a huge boost forward!
    • You can zipboost – Release a stored drift after landing to barrel forward aggressively. You’ll charge forward in the direction of your released boost.
    • Chainable – Extend the length of your boost by doing successive jumps!
    • There is a period of adjustment using zip boosts – the control is something that can throw racers off for those that aren’t accustomed to it.

[gif of store boost, gif of store after getting BOMBED]

  • STORE — Your charge will be stored in a gauge. Press ITEM without an item to use the gauge and boost forward like a miniature sneaker.
    • Microboosts can be used any time you don’t have an item on you.
    • Persists even in death.
    • No landing boost bonus.
    • If the meter is maxed out, no further tricks will give you additional boost. Use it or lose it!
    • Weak in comparison to the other 2.

[gif of augment gain, gif of bonking]

  • AUGMENT — Your charge will be converted to an overall boost in base boost! This has a small effect on your base top speed, but has a multiplier effect on any boosts you get – it’s a very subtle but powerful additive.
    • This speed stacks multiplicative in everything you do – boosts, sneakers, growth, etc.
    • A fully augmented speed 1 can edge out a speed 9!
    • This bonus can be lost, little by little, by bonking into walls, getting spun-out, dying, or driving too slow for too long. Keep up the pace!
    • Augment decay can be prevented by doing more tricks.

How to Trick – Battle

Tap the TRICK button ANYTIME in midair to do a mini-double jump! This double jump gives you a little mobility in the air as well!

[gif of hop]

Tap it AGAIN afterwards to perform a STOMP – You’ll rocket to the ground and zero in on foes.

[gif of stomp]

  • The stomp creates a shockwave that’ll push opponents away! Use it to shove people into pits, or clear a landing zone for the perfect shot!
  • You can stomp through explosions! Adds new meaning to the term divebombing.
  • Once you start stomping, there’s no stopping! Hope you aimed well.
  • You’ll be vulnerable for a split second after landing from a STOMP.


  • PLAYER SIDE – Mechanical
    • ac_trickstyle [text or 0-2] alises: trickstyle, changetrick, trick, trickchange, ts
      n.b. This does not have any effect in Battle Mode, which forces the STOMP style.
      n.b. A server may force a trickstyle upon everyone, preventing a player from changing their style.
    • ac_trickbtn [BRAKE/CUSTOM]* aliases: changetrickbutton, trickbutton trickbtn
      • Allows the trick button to be mapped to BRAKE or CUSTOM1.
      • This command will not work with certain other mods that use CUSTOM1/2/3 as essentials. Tricks will default to BRAKE in this instance.
  • PLAYER SIDE – HUD Customization: Acrobatics allows the user to tweak the UI to their liking.
    • ac_trickreminder [on/off]
      • Toggles the trick reminder locally. If it’s on, it’ll remind you every two races.
    • ac_textalignment [centered/left]
      • The flavor text [“OK…”, “NICE!”, etc.] shows up either in the middle, or on the left side like in earlier versions. No guarantee of compatibility with overlap with other mods.
    • ac_meterstyle [0-4, or type in the styles below]
      • 0 – Disabled – No meter, all screen.
      • 1 – Minimal – Thin as a stick.
      • 2 – Simple – For a cleaner looking colorbar.
      • 3 – Default – Out of the box look.
      • 4 – Alternative – Thicker shades, thicker style.
    • ac_barsnap [yes/no]
      • STORE’S bar will snap towards the left side of the screen if there’s no item – otherwise, it’ll stay where it is at all times, regardless of item presence.
    • ac_augshow [potential/raw]
      • Toggles AUGMENT’S display – displays either POTENTIAL [total out of 100%, not a true 100%] or RAW [the actual percentage of an augmented bonus].
  • SERVER SIDE [you’ll need admin commands to change these]
    • ac_forcetrick [freestyle/burst/store/augment] or [-1, 0, 1, 2]
      • Forces everyone on a server to a homogeneous trick style.
    • ac_acrohell [forced/disabled/hellmap] [-1, 0, 1]
      • Toggles daredevil mode – forced forces it on ALL maps, off removes it completely, hellmap means only hellmaps will experience this.
      • This function will NOT work if [ac_forcetrick] is on – this is an intentional safeguard.

Changelog can be found here.


Afrorule/Pepperdork for the ghost effect code and the original “Tricks” mod, which Acrobatics was originally written on top of.

Ashnal and Callmore for assistance/wisdom and some small snippets of code.
The numerous people who play tested this weird mod and gave feedback – it all helps in some way.


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Building SRB2 Kart for Linux

1- First install the dependencies

Assuming Ubuntu. For other distros find the equivalent dependencies
Open up a terminal and type
sudo apt-get install build-essential git p7zip-full p7zip-rar nasm libpng-dev zlib1g-dev libsdl2-dev libsdl2-mixer-dev libgme-dev libopenmpt-dev libcurl4-openssl-dev

2- Get the source code

vanilla source code:

moe mansion:

Moe Mansion is for playing at 60fps and all the latest probably unstable features. Recommended for client if you’re playing the game on linux.

Vanilla is the same code that kart krew released for 1.3. Recommended for a server since it doesn’t need all the extra features in moe.

Clone the code with git from the moe repository this will get the moe mansion srb2kart 1.3 code (change the url to vanilla if you’re building for a server or don’t want moe mansion)

git clone

In the terminal move to the directory you just cloned
cd Kart-Public

Change to the moe-mansion branch (use master for vanilla)

git checkout moe-mansion

In the future if you want to update your installation you can update the source code by pulling from the repository with git

git pull

3- Compile the source code

Add extra flags as necessary at the end of the line


  • Change LINUX64=1 to LINUX=1 if doing 32-bit
  • Add NONX86=1 if compiling on ARM like an rpi
  • Add GCC91=1 if compiling on Ubuntu 20.04 or any distro with a gcc version higher than 9.1.0 (check your version by running gcc --version) this gets rid of all the warnings when compiling
  • Add NOUPX=1 to get rid of the upx warning at the end of compiling
  • If you still have problems with GME you can disable it by adding NOGME=1
  • Add NOOBJDUMP=1 to speedup linking time
  • Enable discord rich presence support by adding HAVE_DISCORDRPC=1
    • To compile with discord you need to download the discord rpc .zip from here
    • Copy the files from discord-rpc/linux-dynamic/
        • discord_register.h and discord_rpc.h go into /usr/local/include/
        • goes into /usr/local/lib/

In the end your compile line should look something like this (this is what I use)


After waiting for a while the binary will be compiled to bin/Linux64/Release/lsdl2srb2kart

As a good practice every time you want to compile again you need to clean the source folder to avoid getting weird errors. This is mostly necessary when switching branches but it doesn’t hurt to do it every time you compile. To clean simply add “clean” at the end of your compile line. You can quickly go back to what you typed before by pressing the up arrow key and adding clean at the end. Then to the same but with “cleandep”.

For example with my compile line above I would clean like this:



And then remove the clean to compile again


4- Install the binary

What I like to do is move this binary to /usr/local/bin for easy access
While still being in Kart-Public folder in the terminal:
sudo install -Dm755 bin/Linux64/Release/lsdl2srb2kart /usr/local/bin/srb2kart
Also copy the icon
sudo install -Dm644 srb2.png /usr/local/share/pixmaps/srb2kart.png

5- Obtain the assets

Next you’ll need to obtain the assets for srb2 kart.
You can get them with the windows release

If you are running a desktop on linux you can download the installer.exe and open it as an archive and extract all the .kart .srb mdls.dat and mdls/ files
They should go in a folder called .srb2kart inside your home folder

You can also do it via the terminal:

Create the .srb2kart directory
mkdir ~/.srb2kart

Move into it
cd ~/.srb2kart

Get the Installer

Extract only the files we need
7z x srb2kart-v13-Installer.exe "*.kart" "*.srb" "mdls.dat" "mdls/*"

Delete the installer since it’s no longer needed
rm srb2kart-v13-Installer.exe

6- Run the game

Now you can run the game by typing in the terminal

srb2kart -opengl

7- Add shortcuts to your applications menu

Will use the .desktop files provided by SteelTitanium in the AUR

Type into the terminal:
sudo wget -O /usr/local/share/applications/srb2kart-opengl.desktop

sudo wget -O /usr/local/share/applications/srb2kart.desktop

Now srb2kart should appear in your applications menu.

Running with OpenGL lets you use models, better performance, among other things and it’s recommended.


Alternatively, you can do a rootless install, if you want to keep everything inside your home folder or are on a computer where you can’t access root (admin access).
Copy lsdl2srb2kart into ~/.local/bin, copy the .desktop files into ~/.local/share/applications, copy the icon into ~/.local/share/pixmaps

If everything on the guide worked fine you don’t have to do this.


If you need any help with this guide you can ping himie (ヒーミー#1031) on the discord server


Thanks to DudeValenzetti, MajorGnuisance, and Ashnal for helping in figuring out compiling and linux fu to make this guide noob friendly.

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