C++ Agentic AI Tools

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Browse free open source C++ Agentic AI Tools and projects below. Use the toggles on the left to filter open source C++ Agentic AI Tools by OS, license, language, programming language, and project status.

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  • 1
    Diplomacy Cicero

    Diplomacy Cicero

    Code for Cicero, an AI agent that plays the game of Diplomacy

    The project is the codebase for an AI agent named Cicero developed by Facebook Research. It is designed to play the board game Diplomacy by combining open-domain natural language negotiation with strategic planning. The repository includes training code, model checkpoints, and infrastructure for both language modelling (via the ParlAI framework) and reinforcement learning for strategy agents. It supports two variants: Cicero (which handles full “press” negotiation) and Diplodocus (a variant focused on no-press diplomacy) as described in the README. The codebase is implemented primarily in Python with performance-critical components in C++ (via pybind11 bindings) and is configured to run in a high‐GPU cluster environment. Configuration is managed via protobuf files to define tasks such as self-play, benchmark agent comparisons, and RL training. The project is now archived and read-only, reflecting that it is no longer actively developed but remains publicly available for research use.
    Downloads: 8 This Week
    Last Update:
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  • 2
    Dead Deer 3.14.92.2026

    Dead Deer 3.14.92.2026

    3D modeler, 3D game maker, 3D demo maker

    3D modeler, 3D game maker, 3D demo maker. to model and create games, demos. Scripting language allows you to code interactions in pseudo-C with the animation and synthesize your own rendering with own-made shaders. Import FBX, BLEND, GLTF, OBJ, 3DS, DAE, X, XML, STL, PCB, ASC, PLY, GSPLATS. Cross-platform project WINDOWS 32/64 /MACOSX 10.6/ 10.8+/APPLSilicon /LINUX/iOS/ANDROID/WINDOWS PHONE/GOOGLE VR/OPEN VR/OCULUS VR/WEBASM/UWP8/10/OPENXR, PIs (ARM32/64), RISCV Players and Editors. Android .NED Player (install APK and "open with" with file managers) APK generator for Android. Support for: Direct3D9 (SM3) Direct3D10 (SM4) Direct3D11 (SM5) Direct3D12 (SM5) OpenGL and GLSL OpenGLES 2/3 Apple METAL Retina, UHD. Intel x86/64, ARMv7/ARM64, RISCV. Linux (Ubuntu/wxWidgets(Gtk3)). iOS /iPasOS (with XCode) (GLES20/METAL) Windows Phone Windows VR (Steam/Oculus) WebAsm/WebGL UWP Windows/XBOX SDL2 Linux ARM 32/64 RISCV OpenXR (Quest?/Pico) 3.14.92.2026
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    Downloads: 25 This Week
    Last Update:
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  • 3
    OpenCity is another 3D city simulator. You can build residential, commercial and industrial zones then supply them with necessary goods and watch them grow up. Version 0.0.6stable is now available for download. Any feature request/bug report is welcome
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    Downloads: 28 This Week
    Last Update:
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  • 4
    EcoLab
    EcoLab is a C++ based Agent Based Modelling system, with emphasis on high performance computing for scaling to large simulations.
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    Downloads: 54 This Week
    Last Update:
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  • 5
    Spark - A generic physical simulator
    Spark is a physical simulation system. The primary purpose of this system is to provide a *generic* simulator for different kinds of simulations. In these simulations, agents can participate as external processes.
    Downloads: 14 This Week
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  • 6
    Redqueen Chess Engine
    Redqueen is an UCI (Universal Chess Interface) only compatible chess engine written in C++.
    Downloads: 20 This Week
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  • 7
    openEAR is the Munich Open-Source Emotion and Affect Recognition Toolkit developed at the Technische Universität München (TUM). It provides efficient (audio) feature extraction algorithms implemented in C++, classfiers, and pre-trained models on well-known emotion databases. It is now maintained and supported by audEERING. Updates will follow soon.
    Downloads: 9 This Week
    Last Update:
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  • 8
    Critterding

    Critterding

    Evolving Artificial Life

    Critterding is a "Petri dish" universe in 3D that demonstrates evolving artificial life. Critters start out with completely random brains and bodies, but will automatically start evolving into something with much better survival skills.
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    Downloads: 8 This Week
    Last Update:
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  • 9
    Brainstormers Public Source Code Release
    The source code of the Brainstormers' RoboCup champion team 2005 has been made publicly available at the end of 2005. That source code release contains also a lot of our results in applying Reinforcement Learning in the simulated soccer domain.
    Downloads: 6 This Week
    Last Update:
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  • 10
    The Mobility Open Architecture Simulation and Tools (MOAST) framework aids in the development of autonomous robots. It includes an architecture, control modules, interface specs, and data sets and is fully integrated with the USARSim simulation system.
    Downloads: 6 This Week
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  • 11
    Game Engine and AI framework for playing No Limit Holdem
    Downloads: 6 This Week
    Last Update:
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  • 12
    Critterding2

    Critterding2

    Evolving Artificial Life

    Downloads: 3 This Week
    Last Update:
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  • 13
    The MaxParser is written in c++ and can parse with first, second, third and fourth order projective Graph-based Dependency parsing algorithm. The project is the new version of the project "Max-MSTParser". If you want to use this software for research, please reference this web address in your papers
    Downloads: 5 This Week
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  • 14
    Sakura is a Knowledge Navigator and User Interface for UNIX, which implements HyperMedia and its own windowing and packing system, both in the main program and in an extensive API for Tcl and other languages.
    Downloads: 4 This Week
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  • 15
    nunn

    nunn

    This is an implementation of a machine learning library in C++17

    nunn is a collection of ML algorithms and related examples written in modern C++17.
    Downloads: 4 This Week
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  • 16
    AGISim is a framework for the creation of virtual worlds for artificial intelligence research, allowing AI and human controlled agents to interact in realtime within sensory-rich contexts. AGISim is built on the Crystal Space 3D game engine.
    Downloads: 2 This Week
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  • 17
    C++ Fuzzy Logic Programming Library - For problem solving in the fuzzy logic domain. It has an object oriented API well suited to C++ syntax for direct inclusion in source code. Portable to platforms that support the C++ STL.
    Downloads: 2 This Week
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  • 18
    KCK2013

    KCK2013

    Inteligentne karaluchy

    Inteligentne karaluchy KCK LI0, sem. zimowy 2013/14, ćwiczenia środa 10.00, grupa nr 15(1CE) Grupa 2. Adam Klimczyk, Miłosz Makowski, Andrzej Rumiński “Inteligentne karaluchy” to aplikacja umożliwiająca użytkownikowi komunikację z agentem w języku naturalnym. Agentem jest człowiek, który znajduje się w pewnym środowisku, zamieszkałym przez karaluchy. Użytkownik może wydawać agentowi polecenia i otrzymywać informacje o stanie środowiska. Agent, wykonując polecenia, może wpływać na środowisko. Dodatkowo aplikacja wyświetla na ekranie aktualne położenie agenta i stan środowiska.
    Downloads: 3 This Week
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  • 19
    Plansim is a C++ framework aimed to the development of efficient planner agents based on heuristic forward search, that use discrete event simulators as the model for the agent's environment.
    Downloads: 2 This Week
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  • 20
    Simultra

    Simultra

    Multiagent simulator of road traffic in Qt/C++ and OpenStreetMap.

    Simultra is an open-source, hybrid road traffic simulator designed to handle large roadmaps in real-time. It combines microscopic and mesoscopic simulations into one multiagent hybrid simulator. The large-scale maps are modelled mesoscopically in real-time, and the complex traffic interactions benefit from detailed agent-based microscopic simulations. To resolve the concurrency issues within the maps representation and the meso-micro transitions, Simultra combines an event-based mesoscopic model of the maps with a more detailed physical engine.
    Downloads: 2 This Week
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  • 21
    Socialscape is a tool for modeling artificial societies. Multiple agents move on a grid and interact with each other. Agents create value only by interacting with other agents, unlike “Sugarscape”, where agents get goods from the land.
    Downloads: 2 This Week
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  • 22
    This project has been renamed to oooark. Old file releases will still be available here. uvsim is a project focused on enabling algorithm development for unmanned systems. It is being constructed to provide an identical interface to simulations and h
    Downloads: 2 This Week
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  • 23
    The aim of this project is to develop an agent for Robocup3d. Evolution algorithms will be used to teach the agent all the required things, from basic movement to more complicated things like formations and team play.
    Downloads: 1 This Week
    Last Update:
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  • 24
    RegMAS (Regional Multi Agent Simulator) is a spatially explicit multi-agent model framework, developed in C++ language and designed for long-term simulations of effects of government policies over agricultural systems (farm sizes, incomes, land use..).
    Downloads: 1 This Week
    Last Update:
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  • 25
    General purpose agents using reinforcement learning. Combines radial basis functions, temporal difference learning, planning, uncertainty estimations, and curiosity. Intended to be an out-of-the-box solution for roboticists and game developers.
    Downloads: 1 This Week
    Last Update:
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