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Altair 8800 Simulator 3.9-0 Altair 8800 Simulator 3.9-0 The Altair 8800 simulator is part of the SIMH family of simulators currently at version 3.9-0. Unlike a real Altair 8800 it features several enhancements: Choice of processor (8080 CPU, Z80 CPU or 8086 CPU) Optional banked memory (16 banks with 64 Kbyte) MMU supporting ROM and memory mapped I/O Optional hard drive support for additional storage capacity Networking support via TCP/IP for client/server systems Support for multiple consoles Timer and keyboard generated interrupts Various devices for Northstar, Vector Graphic and CompuPro Ability to set the clock speed for "real-time" simulation (useful for games) What is new in this release Updated to SIMH 3.9-0 Additional debug flags for SIO, PTR and PTP Number of disks increased to 16 The HDSK device also supports .IMD disks. This works best with the included CP/M 3 distribution. Correct cycle count when 8080 CPU is chosen Quick Start for Running CP/M (see included documentation) Start the simulator and type the command "do cpm2" at the sim> command prompt and CP/M is booted. |
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5,979 | Jan 19, 2017 Peter Schorn  |
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Arduino Simulator v1.5.1 Arduino Simulator v1.5.1 This Arduino Simulator is designed to simulate your (IO) projects with the aim of making everything as simple as possible. If you dont have components like sensors, Leds..., then this program will simulate the components for you. You need a real Arduino board for testing your programs with your computer. Features LEDS Servo motor LCD display ButtonsB Analog sliders 7-segment display Integrated square wave generator Noise detection (microphone) Buzzer (Frequency adjustable) Serial monitor Use this free license key and then click to activate. No need to fill in personal information. Free License key: 5FVKL-CMSM2-ZH9EX-UAFIX-AKRN9 This download is for the Windows version. If you need the MacOS version, download here. Click here to visit the author's website. |
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3,846 | Oct 05, 2020 Louis D'Hont  |
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FlightGear-Flight Simulator v2024.1.1 FlightGear v2024.1.1 Free and open source flight simulator. Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute. Features Free and Open Cross Platform Complete World Scenery Highly Configurable Multiscreen (current standing record: 10 on a single PC) Active Community Changes: v2024.1 AI Traffic and Liveries Fixed fallback models for certain AI aircraft Many improvements to make AI aircraft behavior more realistic Traffic and/or liveries have been added for the following airlines: Aeromexico Aeromexico Connect AeroUnion Mexico Air Caraοbes Air China Airest Cargo Air Hong Kong Air Hong Kong Cargo Amazon Air Amerijet Cargo ... |
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4,317 | Mar 04, 2025 FlightGear Project  |
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Keyboard and Mouse Simulator v1.3 Keyboard and Mouse Simulator v1.3 Keyboard and Mouse Simulator is a special tool to simulate all possible keyboard and mouse actions, which can be done by a real user. To get started, you have to create a special list of actions and commands of what to simulate, or record a sequence of keyboard and mouse actions, both of which will later be simulated step by step. Click here to visit the author's website. |
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6,497 | Jul 02, 2020 2xDSoft  |
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Pioneer v2026-02-03 Pioneer v2026-02-03 👉 A realistic open-source space adventure and trading simulator. Pioneer is a realistic, open-source space simulation game inspired by classic titles like Elite, where you explore a vast procedurally generated galaxy set in the year 3200. Starting with a small ship and limited credits, you can trade goods, accept missions, mine asteroids, bounty hunt, explore star systems, or simply chart your own course through thousands of star systems modeled with believable astrophysics. Pioneer emphasizes realism, featuring Newtonian flight mechanics, detailed star systems based on real astronomical data, seamless planet-to-surface transitions without loading screens, and a dynamic economy. Every star system is uniquely generated, complete with space stations, factions, and political systems that influence missions and trade opportunities. Your browser does not support the video tag. Features: Massive procedurally generated galaxy with thousands of star systems Realistic Newtonian flight model and orbital mechanics Seamless transitions from space to planetary surfaces Trading, mining, exploration, combat, and mission-based gameplay Dynamic economy influenced by system politics and factions Multiple ship types with upgradeable equipment and weapons Realistic star maps based on actual astronomical data Mod support and active open-source development community Supported operating systems: Windows 10, Windows 11 Linux Supported languages: English, German, French, Spanish, Italian, Russian, Polish, Japanese, Chinese Changes: v2026-02-03 02-03-26 Major changes and new features Animate thruster flame (#6204) Add system lawlessness rating to sector map (#6265) Add context-based station economic industries (#6199) Cargo Run custom risk message (#6192) New mission: Find person (#4746) Advice module - Three new advises (#6234) Calculate star colors using Planck's law (#6210) Added 'About' button in Main Menu (#6145) Assassination - minor string improvements and code refactor (#6218) ... |
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21,735 | Jun 27, 2026 Pioneer Developers  |
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Qucs v0.0.19 Qucs v0.0.19 👉 Open-source circuit simulator for analog and digital electronics design and analysis. Qucs (Quite Universal Circuit Simulator) is an open-source electronics circuit simulator designed to perform circuit simulation using graphical schematic capture and a powerful simulation backend. It allows users to design circuits visually and analyze them with a wide range of simulation types including DC, AC, S-parameter, transient, harmonic balance, and noise analysis. Qucs features an intuitive graphical user interface for schematic entry, simulation setup, and result visualization. Simulation results can be displayed in various forms such as Cartesian, polar, Smith charts, tabular data, and timing diagrams. The software supports analog and digital components, RF simulation capabilities, and equation-defined devices, making it suitable for students, hobbyists, and engineers. Qucs uses SPICE-compatible simulation engines and supports netlist-based simulation, giving users flexibility in circuit analysis. It also includes optimization tools, parameter sweeps, and support for user-defined components and models. Features: Graphical schematic capture with component library DC, AC, transient, S-parameter, noise, and harmonic balance simulations RF circuit simulation capabilities Parameter sweeps and optimization tools Equation-defined devices and custom models SPICE-compatible netlist support Data visualization including Cartesian, polar, and Smith charts Tabular and timing diagram result display Subcircuit and hierarchical design support Cross-platform open-source application Supported operating systems: Windows (XP, Vista, 7, 8, 10) Linux FreeBSD macOS Supported languages: English This download is for the Windows version (very bottom of page). If you need the macOS version, download here. Click here to visit the author's website. |
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6,494 | Mar 01, 2026 Qucs team  |
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SimulIDE v1.1.0 SimulIDE v1.1.0 👉 Simple real-time electronic circuit simulator for students and hobbyists. SimulIDE is a simple real-time electronic circuit simulator intended for learning and experimenting with analog and digital electronic circuits and microcontrollers. It supports PIC, AVR, Arduino and other MCUs and MPUs, with a focus on speed, simplicity and quick testing rather than highly accurate professional circuit analysis. Features: Real-time electronic circuit simulation Analog and digital circuit support PIC, AVR and Arduino simulation Code editor and debugger Arduino IDE 2 support Support for GcBasic, PIC asm and AVR asm Fast simulation with low CPU usage Simple workspace for learning, testing and experimenting Useful for students, hobbyists and electronics tinkerers Source code available Supported operating systems: Windows 64-bit, Windows 32-bit, Linux 64-bit, MacOS X86 Supported languages: English, Azerbaijani, Simplified Chinese, Czech, Dutch, French, German, Italian, Russian, Spanish, Portuguese, Brazilian Portuguese, Slovak, Turkish Changes: v1.1.0 03-12-26 Updated to SR2 (Stable Release 2). This download is for the Windows 64bit version (very bottom of page). All other download assets are below: Other Windows: SimulIDE_1.1.0-SR2_Win32.zip macOS: SimulIDE_1.1.0-SR2_MacOs.zip Linux: SimulIDE_1.1.0-SR2_Lin64.tar.gz Click here to visit the author's website. |
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249 | Jun 14, 2026 santigoro  |
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Simutrans v124.3.1 Simutrans v124.3.1 👉 Open-source transport and logistics simulation game. Simutrans is a free and open-source transportation simulation game in which you build and manage a successful transport company. Design and operate complex transport networks including railways, roads, trams, ships, and aircraft. Transport passengers, mail, and goods between cities and industries while balancing finances, expanding infrastructure, and adapting to changing economic conditions. Simutrans features a dynamic world with towns that grow based on your transport services, industries that produce and consume goods in supply chains, and multiple eras with historically inspired vehicles. Players can choose different paksets (graphics and data sets) that define the style, scale, and gameplay complexity of the world. The game supports both single-player and network multiplayer modes. Features: Build and manage rail, road, tram, ship, and air transport networks Transport passengers, mail, and goods across dynamic maps Realistic economic simulation with supply chains and industry production Multiple eras with a wide selection of historically inspired vehicles City growth influenced by transport coverage and service quality Configurable maps and scenarios Multiple graphical paksets with varying complexity and scale Single-player and online multiplayer support Cross-platform and open-source Supported operating systems: Windows 7, Windows 8, Windows 10, Windows 11 macOS Linux Supported languages: English, German, Spanish, French, Italian, Japanese, Korean, Chinese, Dutch, Polish, Portuguese, Russian, and others Changes: v124.3.1 (r11671 on 5-Apr-2025): CHG: option for pakset dump versus all other debug by appending 'p' to the debug level, e.g. "-debug 0p" to show only pak details to declutter server logs CHG: tram system type way can be laid over other tracks as well (like pak192 narrowgauge over normal rails) CHG: bridge builder is now only a two click tool (total renewal) Can again connect to complex ramps on elevated ways or cross rivers automatically FIX: Players gain money by building long stretches of expensive tunnels FIX: Pak files cannot represent cost of vehicles ... |
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7,370 | Mar 01, 2026 Simutrans  |
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