Modpack

Ozone Skyblock Reborn 2
Rank 1,267
Rank 310 among modpacks

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Ozone Skyblock Reborn 2

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0.5★ (no ratings)
1 rating (50%) · 1.0★
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Gameplay rating distribution
1 review (100%) · 0.5★
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Aesthetics rating distribution
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1 review (100%) · 2.0★
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1 review (100%) · 4.5★
5.0★ (no reviews)
0.5★ 5★

Inspired by Project Ozone. Extreme crafting, tech, magic, and automation! Sequel to Ozone Skyblock Reborn.

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Skyblock
Advanced Tech
Questing
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Minecraft

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1.0
AstresEngine

Reputation ranks

Explorer 0 pts
Contributor 100 pts
Guide 500 pts
Veteran 1,500 pts
Luminary 4,000 pts

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About reputation ranks
Posted: June 19, 2026 at 7:04:40 AM UTC
20 hrs
Total hours played at time of review
MC 1.21 Dropped
The version(s) the reviewer played
Gameplay
0.5
Aesthetics
2.0
Performance
4.5

My 2 friends and I started playing this modpack on Expert with an expectation that it carried on the legacy of Project Ozone 1-3 into modern versions, but as we got further into the pack, it became more and more apparent that most of the "expert"ness of the pack completely revolved around making recipes ludicrously expensive and then gating functional automation tools (notably AE2) behind the late-game. This made for an incredibly dull experience mostly consisting of exhausting manual labor.

The main issue: A lot of the pack is spent running from machine to machine gathering stacks upon stacks of resources to craft the next big thing, all the while knowing that we'd have to replace all of it as soon as we actually unlocked AE2 and we could set up the production lines. The typical expert direction you'd go is automating resources so you can get some passive materials, right? But at the start, all we could do was use basic pipes to automate some sifters, and that was it. Even crafting Sophisticated Storage drawer upgrades costed 8 copper, 8 iron, 8 gold, 8 diamond, and 8 netherite each, just to set up the storage for the darned machines. Oh, and void upgrades cost Crying Obsidian and Dimensional Shards and Ersatz Leather. Not to mention before the iron press this cost would be x9. Yeah, the plates are a 9:1 ratio before the press, and it used to be 18:1. Do you see the problem here? I can't get anything done without hours of manual labor.

This pack felt like trying to play Factorio, but belts required steel, and inserters required plastic, and construction bots required promethium science. No self-proclaimed "automation modpack" would gate functional automation this far back and call it okay. Yes, you can play packs without AE2 to do everything, but usually there is a complexity limit before AE2 is essentially required, and this modpack far exceeds it, and then some. A lot of the mods themselves are barely changed, too, just making an important ingredient 9x or 18x or 50x more expensive.

We had fun for the first few hours when we were just starting out in a new skyblock pack and being able to expand and grow our world, but I don't think I can really give that credit to the pack, because a lot of it is very similar to Project Ozone's start. It also runs well, and I liked having a in-game command to swap between expert and normal.

Other gripes:

  • Blinding and nauseating title screen, calm it down please. Related, the loading background is really saturated for some reason.
  • The mod "Cooked Foods" by the modpack author has blurry textures that don't fit in Minecraft, and the pack dev put a line in KubeJS that disables the perfectly fine Fried Egg from Farmer's Delight.
  • Sophisticated Storage in-place upgrades from Non-sophisticated to Basic cost 1 storage component. Dumb, but fine. The in-place upgrade from Basic to Copper cost another storage component, even though upgrading it in the crafting table doesn't, so you'd just be wasting another 8 copper, 8 iron, ... etc.
  • Some Sophisticated Storage upgrades require Functional Storage upgrades, why?
  • Sophisticated stack upgrade and downgrade require 2 of the previous upgrade and one Functional Storage upgrade to make, creating an O(n^3) resource problem.
  • I think this pack dev just hates Sophisticated Storage.
  • Time in a Bottle equivalent is locked behind end-game, which makes it completely pointless.
  • Some recipes are completely overlooked in expert, conductive alloy requires redstone ingot and copper alloy in the IE Alloy Kiln, but has the default recipe of iron and copper in the EnderIO Alloy Smelter.
  • Ingot to Block compression being disabled is interesting for about 1 hour before you realize that it significantly nerfs compressing drawers. Also the compressor is gated to far end-game for some reason.
  • The iron furnaces mod is actually more expensive in normal mode than expert mode, requiring blocks instead of plates.

Don't play this, basically. Don't make our mistake and build a cool base before realizing that there's nothing more to this pack than expensive recipes.

1
0
1.0
AstresEngine

Reputation ranks

Explorer 0 pts
Contributor 100 pts
Guide 500 pts
Veteran 1,500 pts
Luminary 4,000 pts

Ranks only ever go up; points can drop but your rank stays.

About reputation ranks
Posted: June 19, 2026 at 7:04:40 AM UTC
20 hrs
Total hours played at time of review
MC 1.21 Dropped
The version(s) the reviewer played
Gameplay
0.5
Aesthetics
2.0
Performance
4.5

My 2 friends and I started playing this modpack on Expert with an expectation that it carried on the legacy of Project Ozone 1-3 into modern versions, but as we got further into the pack, it became more and more apparent that most of the "expert"ness of the pack completely revolved around making recipes ludicrously expensive and then gating functional automation tools (notably AE2) behind the late-game. This made for an incredibly dull experience mostly consisting of exhausting manual labor.

The main issue: A lot of the pack is spent running from machine to machine gathering stacks upon stacks of resources to craft the next big thing, all the while knowing that we'd have to replace all of it as soon as we actually unlocked AE2 and we could set up the production lines. The typical expert direction you'd go is automating resources so you can get some passive materials, right? But at the start, all we could do was use basic pipes to automate some sifters, and that was it. Even crafting Sophisticated Storage drawer upgrades costed 8 copper, 8 iron, 8 gold, 8 diamond, and 8 netherite each, just to set up the storage for the darned machines. Oh, and void upgrades cost Crying Obsidian and Dimensional Shards and Ersatz Leather. Not to mention before the iron press this cost would be x9. Yeah, the plates are a 9:1 ratio before the press, and it used to be 18:1. Do you see the problem here? I can't get anything done without hours of manual labor.

This pack felt like trying to play Factorio, but belts required steel, and inserters required plastic, and construction bots required promethium science. No self-proclaimed "automation modpack" would gate functional automation this far back and call it okay. Yes, you can play packs without AE2 to do everything, but usually there is a complexity limit before AE2 is essentially required, and this modpack far exceeds it, and then some. A lot of the mods themselves are barely changed, too, just making an important ingredient 9x or 18x or 50x more expensive.

We had fun for the first few hours when we were just starting out in a new skyblock pack and being able to expand and grow our world, but I don't think I can really give that credit to the pack, because a lot of it is very similar to Project Ozone's start. It also runs well, and I liked having a in-game command to swap between expert and normal.

Other gripes:

  • Blinding and nauseating title screen, calm it down please. Related, the loading background is really saturated for some reason.
  • The mod "Cooked Foods" by the modpack author has blurry textures that don't fit in Minecraft, and the pack dev put a line in KubeJS that disables the perfectly fine Fried Egg from Farmer's Delight.
  • Sophisticated Storage in-place upgrades from Non-sophisticated to Basic cost 1 storage component. Dumb, but fine. The in-place upgrade from Basic to Copper cost another storage component, even though upgrading it in the crafting table doesn't, so you'd just be wasting another 8 copper, 8 iron, ... etc.
  • Some Sophisticated Storage upgrades require Functional Storage upgrades, why?
  • Sophisticated stack upgrade and downgrade require 2 of the previous upgrade and one Functional Storage upgrade to make, creating an O(n^3) resource problem.
  • I think this pack dev just hates Sophisticated Storage.
  • Time in a Bottle equivalent is locked behind end-game, which makes it completely pointless.
  • Some recipes are completely overlooked in expert, conductive alloy requires redstone ingot and copper alloy in the IE Alloy Kiln, but has the default recipe of iron and copper in the EnderIO Alloy Smelter.
  • Ingot to Block compression being disabled is interesting for about 1 hour before you realize that it significantly nerfs compressing drawers. Also the compressor is gated to far end-game for some reason.
  • The iron furnaces mod is actually more expensive in normal mode than expert mode, requiring blocks instead of plates.

Don't play this, basically. Don't make our mistake and build a cool base before realizing that there's nothing more to this pack than expensive recipes.

1
0
1.0
AstresEngine

Reputation ranks

Explorer 0 pts
Contributor 100 pts
Guide 500 pts
Veteran 1,500 pts
Luminary 4,000 pts

Ranks only ever go up; points can drop but your rank stays.

About reputation ranks
Posted: June 19, 2026 at 7:04:40 AM UTC
20 hrs
Total hours played at time of review
MC 1.21 Dropped
The version(s) the reviewer played
1
0

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Modpack
Pack Size
Extra Large 326 mods
Latest Version
Ozone Skyblock Reborn 2 - 1.5.5
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Description

Inspired by Project Ozone. Extreme crafting, tech, magic, and automation! Sequel to Ozone Skyblock Reborn.

Ozone Skyblock Reborn 2 is an expert skyblock questing modpack that aims to challenge the player while guiding them through numerous quests to achieve rewards. The hundreds of included quests will take the player through mods for Minecraft version 1.21.1, with the ultimate goal being to craft creative-only items and complete a few "simple achievements".  Technology, magic, exploration, automation, and more are at your fingertips! This pack is multiplayer friendly with quest rewards sharing options available. To learn how to create separate islands for each player, run the command /skyblock gui.

PACK MODES: This modpack has two difficulties. The first is Normal mode, similar in difficulty to "Titan Mode" of Project Ozone. The second is Expert mode, similar in difficulty to "Kappa Mode" of Project Ozone. Commands: "/packmode expert" for Expert mode, "/packmode normal" for Normal mode. Modpack default is set to normal mode. The difficulty setting will apply to all players in a save/server. Cheats will have to be enabled (open to lan, enable cheats, enter command, and then restart world to disable cheats) or you will need to be a server operator. If you don't want to use commands, you can also change the packmode via /kubejs/config/common.json. Make sure to edit the file before loading your world. This process (either commands or file editing) will need to happen each time the modpack updates if you wish to play on Expert mode, as the modpack will always default to Normal mode.

This modpack series is inspired by the modpack series "Project Ozone" by TheCazadorSniper. If you haven't played it before, you should check out the projects here: https://www.curseforge.com/members/thecazadorsniper/projects 



To download, please install the Curseforge app, search for "Ozone Skyblock Reborn 2" and click Install.

Feel free to leave comments of feedback, questions, concerns, or bugs. Thanks for downloading!

*If you wish to stream or post a video using this modpack, please link to the original project page*

Official Discord Server: https://discord.gg/GhwnpFeWKH


 Mod List:


Video Playthroughs:

Screenshots

Gallery

  • Starting Island
    Starting Island
  • Starting Resources
    Starting Resources
  • Plentiful Quests
    Plentiful Quests
  • Space Adventures
    Space Adventures
  • Creative Items
    Creative Items
  • Sky Base
    Sky Base
  • Expanded Nether
    Expanded Nether
  • John Cena
    John Cena
  • Custom Recipes
    Custom Recipes
  • Overpowered Gear
    Overpowered Gear
  • End Structures
    End Structures
  • Unique Crafting
    Unique Crafting
  • Extreme Power
    Extreme Power
  • Exciting Magic
    Exciting Magic
  • Chance Cubes
    Chance Cubes
  • Mystical Crops
    Mystical Crops
  • Advanced Machines
    Advanced Machines

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