added new entries

games/framework/_toc.md

@@ -41,7 +41,9 @@
 - **[Qt](qt.md)** (C++, LGPL-3.0, mature)
 - **[Quad-engine](quad.md)** (Pascal, MIT, beta)
 - **[SDL Game Engine 2D](sge2d.md)** (C, MIT, beta, inactive since 2014)
+- **[Scrolling Game Development Kit 2](scrolling_game_development_kit_2.md)** (C#, ?, mature, inactive since 2017)
 - **[ScummVM](scummvm.md)** (C++, GPL-2.0, mature)
+- **[SoftPixel Engine](softpixel_engine.md)** (C++, zLib, mature, inactive since 2013)
 - **[Solarus](solarus.md)** (C++, GPL-3.0, mature)
 - **[Superpowers](superpowers.md)** (Typescript, ISC, mature)
 - **[Terasology](terasology.md)** (Java, Apache-2.0, mature)

games/framework/scrolling_game_development_kit_2.md

@@ -0,0 +1,14 @@
+# Scrolling Game Development Kit 2
+
+_Program for creating 2D scrolling games._
+
+- Home: http://sgdk2.sourceforge.net/, https://sourceforge.net/projects/sgdk2/
+- State: mature, inactive since 2017 
+- Download: http://sgdk2.sourceforge.net/download.php, https://sourceforge.net/projects/sgdk2/files/
+- Platform: Windows
+- Keywords: side-scrolling
+- Code repository: https://git.code.sf.net/p/sgdk2/git, https://svn.code.sf.net/p/sgdk2/code/trunk (svn)
+- Code language: C#
+- Code license: ?
+
+## Building

games/framework/softpixel_engine.md

@@ -0,0 +1,18 @@
+# SoftPixel Engine
+
+_High-level real-time 3d engine._
+
+- Home: http://softpixelengine.sourceforge.net/
+- State: mature, inactive since 2013 
+- Download: http://softpixelengine.sourceforge.net/downloads.html
+- Platform: Windows, Linux
+- Keywords: 3D
+- Code repository:  https://svn.code.sf.net/p/softpixelengine/code/trunk (svn)
+- Code language: C++
+- Code license: zLib
+
+See also [SoftPixel Editor](https://sourceforge.net/projects/softpixeleditor/)
+
+## Building
+
+- Build system: CMake