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.

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Alternatives list

  1. Unreal Engine icon

    Unreal Engine

     184 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.

    108 Unreal Engine alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application type

    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
     

    • 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

     38 likes
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    The completely free and source-available 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.

    65 Defold Engine alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Defold Engine screenshot 1
     
  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!.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    Overview
     

    • 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

     43 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.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

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

    • 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

     23 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.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    Open 3D Engine screenshot 1
     
  7. UnrealEd icon

    UnrealEd

     6 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.

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

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

    • UnrealEd is the most popular commercial alternative to Source SDK.

    • UnrealEd is Paid and ProprietarySource SDK is also Paid and Proprietary
  9. 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.

    38 Game Guru alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    Game Guru screenshot 1
     
  10. 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.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    Fyrox Game Engine screenshot 1
     
  11. 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.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    • Linux
    • Lua
    Cafu Engine screenshot 1
     
  12. 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.

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Platforms

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

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

    • Valkyrie Engine is Freemium and ProprietarySource SDK is Paid and Proprietary
  13. 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.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    SmartShape screenshot 1
     

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

    • SmartShape is Free and Open SourceSource SDK is Paid and Proprietary
  14. Maratis icon

    Maratis

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

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

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

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

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