Both channels
Blocksworth (@blocksworthmc) and Mr. Moss Builds (@mrmossbuilds) use the same client setup.
- Game
- Minecraft: Java Edition 26.3 (minecraft.net)
- Shader
- Complementary Shaders Reimagined r5.9.3 (modrinth.com/shader/complementary-reimagined)
- Mods
- Fabulously Optimized 15.0.0-alpha.5 for 26.3, which brings Sodium and Iris (modrinth.com/modpack/fabulously-optimized)
- Replay & camera
- Flashback 0.43.6 (modrinth.com/mod/flashback)
None of these change how the game plays: the shader and Sodium/Iris change the picture, Flashback records a replay that the camera moves through afterwards. Some earlier videos used Iris 1.11.7 on its own instead of the modpack, and some were recorded on the server side with FlashbackServer 1.2.4 (modrinth.com/plugin/flashback-server).
Mr. Moss Builds
The same setup as above. Mr. Moss’s skin comes from our own resource pack, which is not published.
Blocksworth
The same setup as above. Characters with their own look wear skins from our own resource pack, which is not published.
The physics videos (Demolition, Wipeout) run on a Paper server with our own physics plugin (a Rust core with the Rapier physics engine). It is not public and not vanilla, so those videos say “modded Minecraft” instead of “real Minecraft”.
What the description footer means
- AI voice
- The narration and character voices are AI-generated. Videos without speech leave this out.
- real Minecraft Java 26.3
- Recorded in the game itself, in the version named. What is staged (placed mobs, sped-up ticks, built sets) is said in the description.
- modded
- A gameplay mod or plugin changes how the game behaves in that video.
Our own staging tools (a plugin that places mobs and runs the scene) are production tools, not gameplay downloads.