descriptions of entries checked and either incorporated to keywords and inspirations or redundancies removed

entries/maelstrom.md

@@ -2,19 +2,17 @@
 
 - Home: https://www.libsdl.org/projects/Maelstrom/
 - Media: https://en.wikipedia.org/wiki/Maelstrom_(1992_video_game)
-- Inspiration: Asteroids
+- Inspiration: Asteroids, Blasteroids
 - State: mature, inactive since 2002
 - Download: https://www.libsdl.org/projects/Maelstrom/binary.html
 - Platform: Windows, Linux, macOS
-- Keyword: action, arcade, remake, shooter
+- Keyword: action, arcade, remake, shooter, clone
 - Code repository: https://github.com/richardjs/Maelstrom.git (see also https://www.libsdl.org/projects/Maelstrom/source.html)
 - Code language: C, C++
 - Code license: GPL-2.0
 - Code dependency: SDL
 - Assets license: CC-BY-3.0
 
-Enhanced clone of Atari's 1979 Asteroids arcade game with a visual style similar to Atari's 1987 sequel, Blasteroids.
-
 ## Building
 
 - Build system: Autoconf