added new entries

games/puzzle/_toc.md

@@ -4,9 +4,11 @@
 - **[2048](2048.md)** (Javascript, MIT, mature)
 - **[Atomiks](atomiks.md)** (C, GPL, mature)
 - **[Atomix](atomix.md)** (C, GPL-2.0, mature)
+- **[Enigma](enigma.md)** (C, C++, GPL-2.0, mature)
 - **[Fish Fillets - Next Generation](fish_fillets_ng.md)** (C++, GPL-2.0, mature, inactive since 2011)
 - **[Frozen Bubble](frozen_bubble.md)** (Perl, GPL-2.0, mature, inactive since 2012)
 - **[KAtomic](katomic.md)** (C++, GPL-2.0, mature)
 - **[Pingus](pingus.md)** (C++, GPL-3.0, mature)
+- **[TetraVex](tetravex.md)** (Swift, GPL-3.0, beta)
 
 [comment]: # (end of autogenerated content)

games/puzzle/enigma.md

@@ -0,0 +1,19 @@
+# Enigma
+
+_Puzzle game based on Oxyd._
+
+- Home: http://www.nongnu.org/enigma/, https://sourceforge.net/projects/enigma-game/
+- Media: https://en.wikipedia.org/wiki/Enigma_(2007_video_game)
+- State: mature
+- Download: http://www.nongnu.org/enigma/download.html#stable
+- Platform: Windows, Linux, macOS
+- Code repository: https://github.com/Enigma-Game/Enigma.git, https://svn.code.sf.net/p/enigma-game/source/ (svn)
+- Code language: C, C++
+- Code license: GPL-2.0
+
+Inspired by Oxyd.
+
+## Building
+
+- Build system: Autoconf
+

games/puzzle/tetravex.md

@@ -1,16 +1,19 @@
-# TetraVex for macOS
+# TetraVex
 
-A port of TetraVex for macOS
+_A port of TetraVex for macOS._
 
 - Home: https://github.com/Lisergishnu/TetraVex
 - State: beta
 - Download: https://github.com/Lisergishnu/TetraVex/releases
 - Platform: macOS
-- Keywords: macOS, Win3.1
-- Code repository: https://github.com/Lisergishnu/TetraVex
+- Keywords: port
+- Code repository: https://github.com/Lisergishnu/TetraVex.git
 - Code language: Swift
+- Code license: GPL-3.0
 - Code dependencies: Cocoa
-- Code licence: GPL-3.0
+
+
+Original was part of the [Microsoft Entertainment Pack 3](https://en.wikipedia.org/wiki/Microsoft_Entertainment_Pack#Microsoft_Entertainment_Pack_3) published in 1991.
 
 ## Building