Create Simulated Additions
by Sn_ake
Simulated Additions, a NeoForge 1.21.1 add-on, gives Create Simulated and Create Aeronautics players new engine types and a redstone computing block.
What it does
The mod adds three engine variants next to the Portable Engine: the V4 Engine gives twice the stress units while burning twice the fuel, and the I2 Engine gives half the output for half the fuel. A third type, the Mid-Drive Engine, matches the Portable Engine in output and fuel use but delivers power through a cog rather than a shaft. All of them can be mounted vertically, which the Portable Engine cannot, and each offers clockwise, counterclockwise and neutral modes. Neutral mode halts rotation and fuel use without removing the fuel.
The release also adds the Redstone Computator, a block that performs addition, subtraction, multiplication and division on redstone signals. The mod requires Create and Create Aeronautics, and it runs on NeoForge for 1.21.1 only. Because the environment is client and server, the server and every player need it. The code is not open source, and all rights are reserved.
Key features
V4 Engine
Provides twice the stress units of the Portable Engine, at the cost of twice the fuel consumption.
I2 Engine
Provides half the stress units of the Portable Engine and uses half the fuel.
Mid-Drive Engine
Matches the Portable Engine's output and fuel use, but transfers power through a cog instead of a shaft.
Vertical mounting and neutral mode
Every engine can be turned vertically and can be set to clockwise, counterclockwise or neutral, which stops rotation and fuel use.
Redstone Computator
A redstone block that adds, subtracts, multiplies and divides incoming redstone signals.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
Create: Netherite Portable Engine is a NeoForge option for 1.21.1 released under the MIT License. Aeronautic Additions Tweaks covers the same loader and version and is released under the GNU General Public License v3.0 only, with both client and server needing it. Simulated Additions differs from both in offering the three new engine variants and the Redstone Computator.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Create Simulated Additions | NeoForge | 1.21.1 | Client and server | 2026-06-09 |
| Create: Netherite Portable Engine | NeoForge | 1.21.1 | Client and server | 2026-05-24 |
| Aeronautic Additions Tweaks | NeoForge | 1.21.1 | Client and server | 2026-08-07 |
Questions
Does Simulated Additions need Create Aeronautics?
Do servers need Simulated Additions installed?
Are more redstone components planned?
In the catalog
Create Simulated Additions is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Sn_ake
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What the author says
All engines can be turned vertically (unlike the Portable Engine) and have "clockwise", "counterclockwise", and "neutral" modes. Neutral mode stops the rotation and fuel consumption without having to remove fuel. Adds 1 new redstone component - Redstone Computator: Allows for addition, subtraction, multiplication…
Official listing
- Modrinth page
- modrinth.com/mod/create-simulated-additions
- Owner
- Sn_ake
- Published
- 2026-05-10
- Updated on Modrinth
- 2026-06-09
- Facts verified
- 2026-10-15