zSRB2 is a recreation of Sonic Robo Blast 2 on the Zandronum engine, the goal for v1 was to recreate the Multiplayer portion of the game, It currently features 3 New Game Modes, Match, a new type CTF and Race, Check out the list below for key features of the game:


  • New Type of Capture the Flag.
  • New Race mode, ready to be played, finish 3 Laps and try to get the highest score.
  • Breakable Monitors with proper Bouncing physics, Jump on them or spin into them to Break.
  • New SRB2-ish Chasecam based on "TheArmyGuy's code" (Great thanks to him for allowing me to use it), Which will be enabled if Coop or Survival modes are on, Also added additional options under options menu to let you configure it the way you want.
  • 3 Playable Characters, Sonic, Knuckles and Tails, Sonic can perform a fast and Strong Jump dash ability, making him hard to hunt down, Knuckles can Glide and Climb, and Tails can fly and reach places that Sonic and Knuckles can't reach by Normal Means.
  • Extended Player class states with New Spring, Gasp and Running animations.
  • Spindash, Press your Alt fire key to spin.
  • 4 Shield Powerups, Force Shield, Elemental Shield, WhirlWind Shield and Armageddon Shield, each with their unique abilities, Press Spindash in air to activate their abilities.
  • Underwater system with low gravity, Elemental Shield allows you to breath Underwater, alternatively you can breath from air bubbles (don't drown !)
  • Elemental Shield will protect you from Fire damagetype.
  • All new SRB2 weapon rings recreated in DECORATE, complete with their features and ammo style.
  • New ammo system, you need at least 1 Ring to fire a projectile from your current weapon, a shot costs 1 ring and bit of that weapon ammo type.
  • Over 15 Maps fully ported to Doom in Hexen Format, complete with their gimmicks.
  • over 50 Thing types recreated in DECORATE Format, with their original DoomedNums to make porting other SRB2 maps easier in the future.
  • New Score system, you get 50 Points for damaging an opponent and 100 for killing him.
  • New Health system, you need at least 1 Ring to not die, you get a thrust after getting hit and you lose control of your character and rings until you land again (though you will still be able to fire projectiles), If you have a shield you don't lose or drop rings.
  • New Acceleration system

How do I host this ?
* For Race Mode : Switch game mode to Cooperative or Survival and set maximum lives to whatever you want, and use this Maplist.
* For Match Mode : Set gametype to Deathmatch and use this Maplist, You can also change Maximum points before round ends using the next console command via RCON :

  • RCON Maxpoints "VALUE"

* For CTF Mode : Set gametype to Capture the flag and use this Maplist.

Once you're ingame, Head to Customize Controls and Bind keys for :

  • Spindash.
  • Scoreboard.
  • Ability (very bottom of controls list).
  • Third Persone Mode (Coop only).
  • View media
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A day i wasn't hoping would come but i have to admit due to ZDoom and GZDoom Engine Limitations i won't be able to successfully, faithfully, and accurately port all of SRB2 Features, Most of Sector types, and Behaviours of enemies as well as various other effects are simply impossible to recreate without having to modify the Source code for those engines, even the latest Dev Builds of those engines don't contain what I need.

What do you need Exactly ?

  1. Scale Player ingame. and also Change Height of Player during Spindash, These won't happen anytime soon according to developers of the ports.
  2. Track Linedefs angles to Force Knuckles to look at them while climbing.
  3. Hundereds of Linedef types and Sector types, Recreating these with a combination of ACS and Existing effects would be a Pain in the butt, and even then it won't be accurate.
  4. Proper Slope Physics similar to those from SRB2, The upcoming 2.2 SRB2 Update will use those heavily and there's no way to Port those without direct engine modification.

Fate of zSRB2 ?

I'm going to leave it here the way it is, Currently none of the above features are needed, The game now features over 20 Maps and is in a playable State, However not so accurate, So I recommend you to play the original Instead, It still has an active community and Multiplayer even today, else you're welcome to Pick it up where i left and Continue with maybe an engine modification ?

Kind Regards


zSRB2 - Progress Report

zSRB2 - Progress Report

News 2 comments

Some exciting stuff has been made Recently, check them out.

zSRB2 - Changelog

zSRB2 - Changelog


Figured i'd write them all here, letting you know all i've changed and fixed

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zSRB2 v2.1q Full Package

zSRB2 v2.1q Full Package

Full Version

(For Zandronum 3.0 or Higher only) v2.1q Fixes score bug that prevented players from gaining points and adds Spindash and Thok trail, along with various...


Yeah its a cool game but i have a problem

Only have to play online mod why?

Sorry for my english but i am Brazillian

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LOZ_98 Creator

Because there are many SRB2 Exclusive features that are simply not possible to recreate with the limited GZDoom engine capabilities, I wrote an article up there explaining what I need and why I can't recreate Proper Singleplayer components.

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Gameplay please for did my opinion

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LOZ_98 Creator

Play it and find out ;)

Reply Good karma+2 votes

3 map ? :V

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LOZ_98 Creator

No, there's about 17 Maps for CTF and Deathmatch and Co-op/Race, all of them are exclusively for Multiplayer because of the engine limits.

Reply Good karma+2 votes

Ok! I played it! Thank you! Mod is great!

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