CurseForge · Minecraft mod
Calculator 2 - Foundations
Foundations Calculator brings SonarSonic’s Calculator to NeoForge, with its required core systems integrated into one mod. Build powered processing systems, develop circuits through research, store energy, and automate machinery.
Quick answer
Which Calculator 2 - Foundations release should I use?
Calculator 2 - Foundations Foundations Calculator — 26.3 — 26.3-0.1.0R5 targets 26.3 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Calculator 2 - Foundations required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Calculator 2 - Foundations Foundations Calculator — 26.3 — 26.3-0.1.0R5 need?
Foundations Calculator — 26.3 — 26.3-0.1.0R5. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Calculator 2 - Foundations without breaking your instance.
Built for Calculator 2 - Foundations Foundations Calculator — 26.3 — 26.3-0.1.0R5. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Foundations Calculator — 26.3 — 26.3-0.1.0R5. It targets 26.3 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Foundations Calculator — 26.3 — 26.3-0.1.0R5. It opens that exact file at the source.
About this project
What does Calculator 2 - Foundations add?
Foundations Calculator
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Powered machines, circuit research, automation, and configurable energy systems for Minecraft 1.21.1.
Foundations Calculator brings SonarSonic’s Calculator to NeoForge, with its required core systems integrated into one mod. Build powered processing systems, develop circuits through research, store energy, and automate machinery.
What’s included
- Crafting progression: specialized crafting paths and advanced machine recipes.
- Machines and automation: processing equipment, generators, power cubes, and configurable item/energy sides.
- Research and circuits: research progression, circuit processing, and upgrades.
- In-game field guide: getting-started instructions, searchable entries, and recipe links; works without a separate guidebook mod.
- Configurable power: per-machine settings, native long-valued energy storage and transfer, and power diagnostics.
- Modpack tools: operator configuration inspection and optional recipe scripting.
Requirements
- Minecraft 1.21.1
- NeoForge 21.1.250 or later within the 21.1 series
- Java 21
- Install Foundations Calculator on both the client and server.
No separate Sonar Core or Foundations Guide API download is required. The required core code and guide API are included. Optional mods are not bundled and are not required for standalone play.
Optional integrations
Integration support is included for JEI, EMI, Jade, KubeJS, and CraftTweaker. Optional energy adapters cover Mekanism, GregTech CEu, Modern Industrialization, Applied Energistics 2, and GrandPower. A Patchouli-compatible field-guide mirror is also included.
Use the Minecraft 1.21.1 NeoForge versions of optional mods and install their own required dependencies. Integration support does not mean every combination of mod versions has been tested. Check the issue tracker when assembling a large pack.
Current release: 0.0.5a.R1 — Alpha
This cumulative release includes the earlier .3, .4, and .5 updates, plus a fix for high-capacity power-cube balancing. Automated build, unit tests, and both 131-test runtime suites passed. Client polish, copied-world migration, multiplayer acceptance, and extended performance testing remain in progress.
Minecraft 26.3 is still being ported. This file supports 1.21.1 only; 26.4 compatibility is not claimed.
Installation
Install the matching NeoForge version, place the release JAR in your mods folder, and launch with Java 21. For a dedicated server, install the same release on the server and all connecting clients. Back up existing worlds before upgrading an alpha build.
Credits and support
Original Calculator and Sonar Core by Ollie Lansdell (SonarSonic). Foundations port and maintenance by Foundations / Shnewbs. Source and retained upstream notices are distributed under the MIT License.
When reporting a problem, include your mod version, Minecraft/NeoForge versions, reproduction steps, and relevant logs.
Project description from CurseForge.
Pick your setup
Calculator 2 - Foundations by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Calculator 2 - Foundations versions and loaders
Foundations Calculator — 26.1.2 — 26.1.2-0.1.0-rc.1
FoundationsCalculator-26.1.2-0.1.0-rc.1.jar
19 Oct 2026
Foundations Calculator — 1.21.1 — 0.1.0-rc.1
FoundationsCalculator-0.1.0-rc.1.jar
19 Oct 2026
Foundations Calculator — 26.3 — 26.3-0.1.0-rc.1
FoundationsCalculator-26.3-0.1.0-rc.1.jar
19 Oct 2026
Foundations Calculator — 26.3 — 26.3-0.1.0alpha.R6
FoundationsCalculator-26.3-0.1.0alpha.R6.jar
17 Oct 2026
Foundations Calculator — 1.21.1 — 0.1.0alpha.R6
FoundationsCalculator-0.1.0alpha.R6.jar
17 Oct 2026
Foundations Calculator — 26.1.2 — 26.1.2-0.1.0alpha.R6
FoundationsCalculator-26.1.2-0.1.0alpha.R6.jar
17 Oct 2026
Foundations Calculator — 26.3 — 26.3-0.1.0R5
FoundationsCalculator-26.3-0.1.0alpha.R5.jar
17 Oct 2026
Foundations Calculator — 1.21.1 — 0.1.0R5
FoundationsCalculator-0.1.0alpha.R5.jar
17 Oct 2026
Foundations Calculator — 26.1.2 — 26.1.2-0.1.0R5
FoundationsCalculator-26.1.2-0.1.0alpha.R5.jar
17 Oct 2026
Foundations Calculator — 26.1.2 — 26.1.2-0.1.0R4
FoundationsCalculator-26.1.2-0.1.0alpha.R4.jar
17 Oct 2026
Foundations Calculator — 26.3 — 26.3-0.1.0R4
FoundationsCalculator-26.3-0.1.0alpha.R4.jar
17 Oct 2026
Foundations Calculator — 1.21.1 — 0.1.0R4
FoundationsCalculator-0.1.0alpha.R4.jar
17 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.



