added new entries

games/action/_toc.md

@@ -1,11 +1,17 @@
 # Action/Arcade
 
 [comment]: # (start of autogenerated content, do not edit)
+- **[Aeron](aeron.md)** (C++, ?, mature, inactive since 2011)
+- **[Aleph One: Marathon](aleph_one_marathon.md)** (C++, Lua, GPL-3.0, mature, inactive since 2015)
 - **[Armagetron Advanced](armagetron_advanced.md)** (C++, GPL-2.0, mature)
 - **[Astromenace](astromenace.md)** (C++, C, GPL-3.0, mature)
+- **[Atomic Tanks](atomic_tanks.md)** (C++, GPL-2.0, mature, inactive since 2016)
 - **[BZFlag](bzflag.md)** (C++, LGPL-2.1, MPL-2.0, mature)
 - **[Ballerburg](ballerburg.md)** (C, Public Domain, mature, inactive since 1987)
+- **[Battle Tanks](battle_tanks.md)** (C++, GPL-2.0, mature, inactive since 2009)
 - **[Biniax](biniax.md)** (C, zlib, mature, inactive since 2012)
+- **[Blobby Volley 2](blobby_volley2.md)** (C++, GPL-2.0, mature, inactive since 2017)
+- **[Blobwars: Metal Blob Solid](blobwars_metal_solid_blob.md)** (C++, GPL-2.0, mature, inactive since 2015)
 - **[Boulder Dash](boulder_dash.md)** (Java, MIT, mature, inactive since 2015)
 - **[C-Dogs](cdogs.md)** (C, GPL-2.0, mature)
 - **[Cabbages and Kings](cabbages_and_kings.md)** (Python, MIT, mature)
@@ -31,6 +37,7 @@
 - **[OpenClonk](openclonk.md)** (C, C++, ISC, mature)
 - **[Red Eclipse](red_eclipse.md)** (C++, zlib, mature)
 - **[Rocks'n'Diamonds ](rocks_and_diamonds.md)** (C, GPL-2.0, mature)
+- **[SDL Asylum](sdl_asylum.md)** (C, GPL-3.0, mature, inactive since 2009)
 - **[Secret Mario Chronicles](secret_mario_chronicles.md)** (C++, GPL-3.0, mature, inactive since 2009)
 - **[Smash](smash.md)** (JavaScript, MIT, mature)
 - **[Speed Dreams](speed_dreams.md)** (C++, GPL-2.0, mature)

games/action/aeron.md

@@ -0,0 +1,14 @@
+# Aeron
+
+_Air combat maneuvering trainer game._
+
+- Home: https://sourceforge.net/projects/aeron/
+- State: mature, inactive since 2011
+- Download: https://sourceforge.net/projects/aeron/files/aeron/
+- Platform: Windows
+- Code repository: https://svn.code.sf.net/p/aeron/code/ (svn)
+- Code language: C++
+- Code license: ?
+
+## Building
+

games/action/aleph_one_marathon.md

@@ -0,0 +1,16 @@
+# Aleph One: Marathon
+
+_Continuation of Bungie's Marathon 2 FPS game engine._
+
+- Home: https://alephone.lhowon.org/, https://github.com/Aleph-One-Marathon/alephone/wiki, https://sourceforge.net/projects/marathon/
+- Media: https://marathongame.fandom.com/wiki/Marathon_(Game)
+- State: mature, inactive since 2015
+- Download: https://sourceforge.net/projects/marathon/files/
+- Platform: Windows, Linux, macOS
+- Keywords: fps
+- Code repository: https://github.com/Aleph-One-Marathon/alephone.git, https://svn.code.sf.net/p/marathon/code/ (svn)
+- Code language: C++, Lua
+- Code license: GPL-3.0
+
+## Building
+

games/action/atomic_tanks.md

@@ -0,0 +1,17 @@
+# Atomic Tanks
+
+_Scorched Earth clone similar to the Worms series._
+
+- Home: http://atanks.sourceforge.net/
+- State: mature, inactive since 2016 
+- Download: https://sourceforge.net/projects/atanks/files/
+- Platform: Windows, Linux
+- Keywords: artillery
+- Code repository: https://git.code.sf.net/p/atanks/atanks
+- Code language: C++
+- Code license: GPL-2.0
+- Code dependencies: Allegro
+
+## Building
+
+

games/action/battle_tanks.md

@@ -0,0 +1,19 @@
+# Battle Tanks
+
+_Fast 2d tank arcade game with multiplayer and split-screen modes._
+
+- Home: http://btanks.sourceforge.net/blog/, https://sourceforge.net/projects/btanks/
+- State: mature, inactive since 2009
+- Download: https://sourceforge.net/projects/btanks/files/
+- Platform: Windows, Linux, macOS
+- Keywords: arcade
+- Code repository: https://svn.code.sf.net/p/btanks/code/ (svn)
+- Code language: C++
+- Code license: GPL-2.0
+- Assets license: Proprietary
+
+Only sources are GPL?
+
+## Building
+
+

games/action/blobby_volley2.md

@@ -0,0 +1,15 @@
+# Blobby Volley 2
+
+_Continuation of the famous Blobby Volley 1.x arcade game._
+
+- Home: http://blobby.sourceforge.net/, https://sourceforge.net/projects/blobby/
+- State: mature, inactive since 2017 
+- Download: https://sourceforge.net/projects/blobby/files/
+- Platform: Windows, Linux, macOS
+- Keywords: arcade
+- Code repository: https://svn.code.sf.net/p/blobby/code/ (svn)
+- Code language: C++
+- Code license: GPL-2.0
+
+## Building
+

games/action/blobwars_metal_solid_blob.md

@@ -0,0 +1,15 @@
+# Blobwars: Metal Blob Solid
+
+_2D arcade platform game._
+
+- Home: https://sourceforge.net/projects/blobwars/
+- Media: https://en.wikipedia.org/wiki/Blob_Wars#Blob_Wars:_Metal_Blob_Solid
+- State: mature, inactive since 2015
+- Download: https://sourceforge.net/projects/blobwars/files/
+- Platform: Windows
+- Code repository: https://git.code.sf.net/p/blobwars/code
+- Code language: C++
+- Code license: GPL-2.0
+
+## Building
+

games/action/sdl_asylum.md

@@ -0,0 +1,19 @@
+# SDL Asylum
+
+_C port of the computer game Asylum, which was written by Andy Southgate in 1994 for the Acorn Archimedes and is now public domain._
+
+- Home: http://sdl-asylum.sourceforge.net/, https://sourceforge.net/projects/sdl-asylum/
+- State: mature, inactive since 2009 
+- Download: http://sdl-asylum.sourceforge.net/main.html#Download
+- Platform: Linux
+- Keywords: arcade
+- Code repository: https://svn.code.sf.net/p/sdl-asylum/code/ (svn)
+- Code language: C
+- Code license: GPL-3.0
+- Code dependencies: SDL
+- Assets license: PD
+
+[Source of Asylum](http://asylum.acornarcade.com/a_source.php) from 1994.
+
+## Building
+