Official Level Design Collab 2023: Round 2

Official Level Design Collab 2023: Round 2 1.1

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Welcome to Round 2 of the 2023 SRB2 Official Level Design Collab! The OLDC is a celebration of all of the map creators in our community. This time around marks one of the most jammed packed OLDC’s in the 2.2 era! With participants being more familiar with the UDMF format, unique level designs, gimmicks, and a unique hub with rooms by the participants, make this one of the biggest collabs that the OLDC has seen this time around!


You download the collab's files, play them, and that's it! We encourage you to leave a review on this page and/or share detailed feedback in this addon's thread (click the Discussion tab to go there). You can also enter a future OLDC.

Thanks to all our submitters! Have fun!


  • NEW! Hub World mini map activated in console by @Tatsuru
  • ADDITION! Higher quality music available to download if you want to listen to all the new original music and others in all that uncompressed goodness​

  • Teleporter pads by @Tatsuru
  • Level completion tracker by @Tatsuru
  • Random & Multiplayer map portals by @Tatsuru
  • World-to-Screen level names by @Tatsuru & @Varren
  • Map portals by @Tatsuru
  • Voting UI by @Tatsuru
  • Collecting emerald token gives you an emerald by @Lach
  • Single player: character swapper by @clairebun and @Tatsuru
  • Single player: press+hold Tab+Spin to return to hub by @Tatsuru
    • Thanks to SanekoGato for button graphics​


Single Player

Circuit Rush Act 1 by @Sketchzelle
Circuit Rush Act 2 by @Sketchzelle
ColorVoid Chasm by @Maverick
Egg Rocket by @CILC
Omelette Farms by @Bandder
Spleenik the Game 2 by @dashdahog
Magma Mountain by @Sketchzelle
Snow Skies by @starshy
Chemical Base by @S0nic1983, @Othius, & @Mr.FondusBroMan
Rainy Foliage by @JABSphere94
Null Space by @bypigs2
Blue Mountain by @rosie the racoon
Hexacolor Heaven by @FAVman33
Windy Forest by @Vixuzen
Twilight Hill Act 2 by @csean07 ☆Kori☆
Doomship Act 2 by @Avalice
Pump Sewers by @RedBun
Palace of NiGHTS by @SonicHeroX45
The NiGHTMARE by @SonicHeroX45
Mount Majesty by @Voidy2246
Temple Trek by @Hejod
Sapphire Twilight by @Vixuzen
Zaxel’s Garden by @Zaxel Katsugyo
Hanging Illusion by @Pallaris
Vermutlich ne Insel by @Bewinus
Ground Veil Z by @Zaxel Katsugyo
Blossoming Brushes by @NeonSRB2 & @Sonicn't.
Arctic Summit by @Seaballer & @Othius
Metallic City by @StarManiaKG
Totem Tombolo by @Ruberjig
Fortune Forge by @Ruberjig

Ring Slinger

Mega Genesis by @KirbySuperIsKindaDumb


Toxic Citadel Remake by @glaber
Winter Run by @Hejod
Rainy Foliage by @JABSphere94



OLDC 2023 R2 Credits:​

Hub World Map Design:
@RoyKirbs, @glaber, @Othius, @Larz T, OLDC Participants


@Larz T, @glaber, @Othius

Music and Sound:
@CILC - Title Theme
@OttoHibiki, @Othius, @clairebun - OLDC Hub Theme
@Larz T - Level Terminal Sound

OLDC 2023 R2 Logo:

Special Thanks:
@Pikaspoop - Server and Netgame Hosting
@ChaseSP - Testing & Moderation
@CILC - Last minute music compression for file size
@LJ Sonik - Portal Thinkers adjust for better performance in the Hub
Larz T
First release
Last update
3.43 star(s) 23 ratings

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Latest updates

  1. Performance Update and Emblems - Version 1.1

    Hey guys Larz T. First of all, I want to say thank you to everyone for checking out OLDC 2023...
  2. EMERGENCY HOTFIX UPDATE - Version 1.0.2

    No more missing textures and smaller file size to get this uploaded. This should be the last...
  3. EMERGENCY HOTFIX UPDATE - Version 1.0.1

    Something was missing in the original release and it has now been taken care of. Enjoy!

Latest reviews

This is one of the wose old I played because it's have bad levels
Upvote 0
I'm just here to say that Sapphire Twilight was the most fun I've had in SRB2 for a long while. Been playing this game since I was a kid and I come back to it now and then, but I get dissatisfied by the low difficulty. This level actually had me die more than 30 times and it was hella fun beating it. Very creative use of springs, slopes and spikes as well. The last section induces an adrenaline rush like no other level. Very good stuff @Vixuzen
Upvote 0
I'm really sorry but the quality of this one is the lowest it's been in years, a lot of poorly thought out ideas or extremely barren maps and almost nothing feels like it has the raw passion of the last OLDC.
The hub is also much worse than last year's there should REALLY be some form of quality control here because Metallic City should not have been allowed in and various other maps just feel somewhat lazy.

Hoping next year is back to the quality I expect out of the OLDC.
Upvote 2
Well, I had some hours of fun playing this, but I wish I could say more. The hub is neat, but I'd like it if the command to show the map was visible at some other time, since by the time I needed the command I couldn't find what it was.

As for the levels, some were good, some were great, some were meh, but I'm so disappointment at how this pack managed to include two maps that can't be considered levels.

One of them was the ice level with Rayman collectibles. It reminds me of a Little Timmy level in Mario Maker in that it's filled with massive spike balls spread haphazardly with no rhyme or reason, for way too long. I sincerely doubt the level can be completed with a character like Sonic.

The other is Doomship Act 2. It's a troll level, but worse than that is that it cannot be beaten: after you press the large button that sucks you into outer space there is absolutely nothing you can do but go with it and then die. If there is, I gave up after way too many attempts before finding it.

I'm not sure how the "collab" part of the packs works, but I hope that in the future it means level creators can help each other before the pack goes live, thus stopping such levels from showing up, and helping the other levels soar even higher.
Upvote 0
lots of levels and so much fun! alot of work has been put into this level pack great job guys!
Upvote 0
see that version number, ITS LYING TO YOU. the mb from my understanding doesnt let you review mods for the version you actually played if it has updated. this review is for 1.0.0

i have not downloaded *any* updates because i wanted to review every level on the same grounds

if anything was fixed in a later version that i bring up, don't tell me it was fixed...

# NULL space
wasnt good, wasnt bad.

forces level, kinda wish the minecarts moved a bit faster

# doomship

yep that was made in 2.0, didnt really like the invisable platform as if you aren't aware its supposted to be like that then you think its a pit (i am aware that the platforms are invisible because he wanted to recreate a visual bug from 2.0, *or* he didn't know how to add flats), though i am on 1.0. the tiny sonic and tails challenge was fun, didnt really feel like doomship which is an airship from my understanding. felt more like erz, good challenging level if you are willing to deal with some of the bs

was way better than blue mountan zone act 2

music was good

# hanging illusion

good music, liked that it was a mario mode level as it doesnt get used often, like the theme, some areas are a tad bit too dark with brightness at max with opengl, some parts in the 2d mode makes the camera move to avoid being in a wall, there was a blind jump into what i thought was thorns to progress, got lost in circles for a bit due to the correct path being somewhat hidden, first time got stuck in "Spring Anti-Softlock" got eaiser the second time though, in the invisable bridge platforming section i would have prefered holes to be more clearly marked, glad failure in that part didnt kill you

# hub part one

it legit killed my audio driver... idk how it just did

# hub part two

i know im on an old version (1.0), but the missing textures should have never been in a release build

# egg rocket

FUCKING AMAZING MUSIC, one section with spring gets caught with a wall, add gaurd rails after to your 3d to 2d to 3d sections, make sure to make it more sighreadable, didnt really like how much screenshake there was

# spleenik the game, act 2

wide specki, i thoked into a pit, need checkpoints, emblems are placed well

again, i legit dont know what i just played

# snow skies, act 2

bad killplane color choice

# chemical base act 1

purple acid (dont like), varied level design

# blue mountain (2.2 edition)

contains the stupid fucking rvz dinosaurs, frozen water death pit combo, moving ball river part where the ball goes under the bridge isnt consistant, legit made me rage at balls, KILL THAT FUCKING DINOSAUR

# hexacolor heaven Zone

FUCKING AMAZING INTRO, nice colorize filter, pits can blend in, legit the level i never knew i needed, a bit short

# Omelette Farms

balls, i legit dont know what i just played

# magma mountain

legit triggered my falling celing ptsd (thx advance 3), pretty borring fang fight

# twilight hill act 2

you switched from it being a gusher to not being a gusher over a bottomless pit

# circuit rush zone act 1

im going to be honest, this is fucking too much....

# circuit rush zone act 2

fuck that fight

# windy forest

instakill spikes, after spikes that dont instakill you... good level overall though

# hub part 3

ok can you please make those warp pads work better, i keep on accidently spindashing on them

# rainy foliage zone

nice zone, metal race is a bit too tight though

# pipe sewers act 1

this level is shit, jokes aside its nice and short with some challenge, good level

# hub part 4

fuck the nights room, i can bearly see because of how clastrophobic it is, the levels also didnt need to be that high

# palace of nights zone

fun nights level, good job hiding an emerald in it too

# the nightmare zone

not hard, again i dont know what i just played

# mount majesty act 1

bad skybox, instakill water under ice platforming, other than that pretty good level

# zaxel's garden zone

uphill slope that lead into a sudden dropoff, camera didnt ketch up. this happened multiple times. good level otherwise

# temple trek zone

Crissy is back with another banger, some ground textures somewhat blend in with the thorns, path can be unclear at times. very good level

# colorvoid chasm zone

really good level, wish it was fleshed out more. also really needs another checkpoint

# blossoming brushes zone

intresting visuals

# vermutlich ne insel zone

insta kill lava come one, good music, fun

# ground veil z zone

i dont really have anything...

# metalic city zone

very short, first jump at the start of the stage probally should of been a slope or stair

# totem tombolo zone

cool level, intresting gimmics

# artic summet zone

holy shit that was a long fall to my death, couple parts are a bit hard to see in, strobing lights a bit much. pretty good none the less

# fortune forge zone

fucking intresting level, i love gambling

# saphire twilight zone

make the pits that through you up more obvious, didnt really like the texture for the snow spikes, you can still have more than just the edges sticking out, i wish i was made aware of the health mechanic before i was half way through the fucking level, DONT FUCKING SPAM SPIKEBALLS
Upvote 0
I think it is better than the last OLDC where I only liked about three maps, but a lot of these levels are still painfully average. Combine that with my discontempt with recent SRB2 mapping paradigms and you got yourself a two star.
Upvote 4
Love the hub - clearly a lot of effort went into it, both in terms of visuals/decorations, and the functionality/LUA side of things. The individual shops are a really nice way to give a taste of what the maps will be like, plus it was fun to see how folks decorated them differently.
It would be nice if the fast-travel worked between sessions, and my FPS did struggle at times, especially in the really long rows of shops.

I really appreciate the variety in maps. Visuals, length, difficulty and gameplay/modes are all really varied, which made it fun just running into a map and seeing what we got. It also helped keep things feeling fresh, otherwise 30+ maps could end up feeling quite homogenous.

I understand a lot of the maps are listed as singleplayer, but it would be nice if everything functioned properly in multiplayer as well.
- The help tooltips / text boxes in multiple maps didn't display in multiplayer. This was particularly an issue in Fortune Forge because it just wasn't clear what we were supposed to be doing.
- The teleports in Egg Rocket (I think) teleporting all players at the same time, regardless of progress was a bit jarring/confusing.
- I'm not sure if the Lums in a couple maps are quite working in multiplayer, seemed to be issues with them not disappearing, and endlessly spawning particle effects
- On the flip side, I actually think Doomship Act 2 was more enjoyable in multiplayer cus it didn't completely reset the whole map if someone died :P

Overall I really enjoyed this OLDC, ran in to some issues here and there, but nothing that makes me think it deserves less than 5-stars.
Upvote 1
It's 50% great 50% incomplete. The hub feels like New Soleana town from 06. It looks like it had so much potential, but due to problems, it is just incomplete and empty...
Upvote 0
Pretty good levels
Upvote 0