Source SDK AlternativesGame Development Tools and other similar apps like Source SDK

Source SDK is described as 'The Source SDK is a software development kit compiled by Valve Software that is used to create maps or mods for the Source engine, with the exception of Left 4 Dead, Left 4 Dead 2, and Alien Swarm. These games are packaged with their own SDKs, called the Left 4 Dead Authoring' and is a game development tool in the development category. There are more than 10 alternatives to Source SDK for a variety of platforms, including Windows, Linux, Mac, iPhone and iPad apps. The best Source SDK alternative is Unreal Engine, which is free. Other great apps like Source SDK are Defold Engine, Stride Game Engine, Urho3D and Open 3D Engine.

Source SDK iconSource SDK
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The Source SDK is a software development kit compiled by Valve Software that is used to create maps or mods for the Source...

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Source SDK alternatives page was last updated Nov 8, 2024
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  1. Unreal Engine icon

    Unreal Engine

     177 likes
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    Unreal Engine is a professional suite of tools and technologies used for building high-quality games across a range of platforms. Unreal Engine’s rendering architecture enables developers to achieve stunning visuals and also scale elegantly to lower-end systems.

    104 Unreal Engine alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    A screenshot of the new Unreal Engine 5. Source: https://www.unrealengine.com/en-US/blog/unreal-engine-5-is-now-available-in-early-access

    Top Unreal Engine Features

    1.  3D Game Engine
    2.  Destructible geometry
    3.  Visual Programming
    4.  Virtual Reality
    5.  Blueprint Function
    6.  Chaos Engine
    7.  Node Based
    8.  Develop in VR
    9.  Materials Editor
    10.  Particle Engine
    11.  No Coding Required
    12.  Support for scripting

    Unreal Engine VS Source SDK

     

    • Unreal Engine is the most popular Windows, Mac & Linux alternative to Source SDK.

    • Unreal Engine is the most popular free alternative to Source SDK.

    • Unreal Engine is Freemium and ProprietarySource SDK is Paid and Proprietary
  2. Defold Engine icon

    Defold Engine

     35 likes
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    The completely free and open-source game engine Defold solves the technical issues we all have in common when making games. That way, you can focus on being creative and building a great game.

    62 Defold Engine alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • SE flagSweden
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    Defold Engine screenshot 1

    Properties

    1.  Lightweight

    Features

    1.  2D Game Engine
    2.  Lua scripting
    3.  Works Offline
    4.  Extensible by Plugins/Extensions
    5.  Dark Mode
    6.  Portable
    7.  Live Preview
    8.  Ad-free
    9.  No registration required

    Defold Engine VS Source SDK

     
  4. Stride Game Engine icon

    Stride Game Engine

     34 likes
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    Stride (formerly Xenko) is an open-source C# game engine designed for the future of gaming. It comes with a full toolchain and is especially well suited to create realistic games but allows you much more!.

    61 Stride Game Engine alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • JP flagJapan

    Platforms

    • Windows
    Overview

    Stride Game Engine Features

    1.  Support for scripting
    2.  Works Offline
    3.  Ad-free

    Stride Game Engine VS Source SDK

     

    • Stride Game Engine is the most popular Open Source alternative to Source SDK.

    • Stride Game Engine is Free and Open SourceSource SDK is Paid and Proprietary
  5. Urho3D icon

    Urho3D

     42 likes
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    Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D.

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • FI flagFinland
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Raspberry Pi
    Urho3D screenshot 1
    Discontinued

    This repository has been archived by the owner on Jan 25, 2023. It is now read-only. The founder of Urho3D (Lasse Öörni) is currently working on Turso3D.

    Properties

    1.  Lightweight

    Urho3D VS Source SDK

     

    • Urho3D is the most popular Android & iPhone alternative to Source SDK.

    • Urho3D is Free and Open SourceSource SDK is Paid and Proprietary
    • Urho3D is LightweightSource SDK is not according to our users
  6. Open 3D Engine icon

    Open 3D Engine

     22 likes
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    Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.

    105 Open 3D Engine alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    • Linux
    Open 3D Engine screenshot 1

    Open 3D Engine Features

    1.  3D Game Engine
    2.  Virtual Reality
    3.  Multiplayer
    4.  AWS Integration

    Open 3D Engine VS Source SDK

     
  7. Game Guru icon

    Game Guru

     4 likes
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    Welcome to GameGuru, the easy game maker. Our mission is to create the easiest and most enjoyable game creator. Join us and our great & enthusiastic community on this journey.

    License model

    Application type

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Windows
    Game Guru screenshot 1

    Game Guru Features

    1.  3D Game Engine
    2.  Lua scripting

    Game Guru VS Source SDK

     

    • Game Guru is the most popular commercial alternative to Source SDK.

    • Game Guru is Paid and ProprietarySource SDK is also Paid and Proprietary
  9. Fyrox Game Engine icon

    Fyrox Game Engine

     2 likes
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    A feature-rich, production-ready, general purpose 2D/3D game engine written in Rust with a scene editor. Formerly known as rg3d.

    License model

    • Free • Open Source

    Country of Origin

    • International

    Platforms

    • Mac
    • Windows
    • Linux
    Fyrox Game Engine screenshot 1

    Fyrox Game Engine Features

    1.  3D Game Engine
    2.  2D Game Engine

    Fyrox Game Engine VS Source SDK

     
  10. Cafu Engine icon

    Cafu Engine

     3 likes
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    The Cafu Engine is an all-purpose, modern 3D graphics engine and game development kit, feature complete to get you started quickly.

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Windows
    • Linux
    • Lua
    Cafu Engine screenshot 1

    Cafu Engine VS Source SDK

     
  11. Maratis icon

    Maratis

     7 likes
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    Maratis is a portable, simple and visual game development tool designed for artists and developers.

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • FR flagFrance
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • iPhone
    • iPad
    Maratis screenshot 1
    Discontinued

    The last version (3.21) was released in February 2013.

    Maratis VS Source SDK

     

    • Maratis is the most popular iPad alternative to Source SDK.

    • Maratis is Free and Open SourceSource SDK is Paid and Proprietary
  12. UnrealEd icon

    UnrealEd

     4 likes
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    UnrealEd (UEd for short) is the level editor used to create levels for Unreal engine games (eg UT2004 or Killing Floor). Built-in scripting language called UnrealScript allows for editors to customizing game content.

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Windows
    UnrealEd 3.0 viewing the Unreal Tournament 2004 map "Face 3"

    UnrealEd Features

    1.  Level

    UnrealEd VS Source SDK

     
  13. Valkyrie Engine icon

    Valkyrie Engine

     1 like
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    Valkyrie is a no-code creative platform that lets designers combine digital assets and create applications and interactive prototypes: where the power of Unity meets the usability of Photoshop.

    License model

    • Freemium • Proprietary

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Mac
    • Windows
    • iPhone
    • Software as a Service (SaaS)
    Valkyrie Engine screenshot 1

    Valkyrie Engine VS Source SDK

     

    • Valkyrie Engine is the most popular SaaS alternative to Source SDK.

    • Valkyrie Engine is Freemium and ProprietarySource SDK is Paid and Proprietary
  14. SmartShape icon

    SmartShape

     5 likes
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    Your project’s smart 3D digital twin as a Service. SmartShape (formerly Minko) is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms.

    License model

    • Free • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    SmartShape screenshot 1

    SmartShape Features

    1.  3D Game Engine

    SmartShape VS Source SDK

     

    • SmartShape is the most popular Web-based alternative to Source SDK.

    • SmartShape is Free and Open SourceSource SDK is Paid and Proprietary
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