70		Sengoku Gensokyo (Windows, 2007)
64		Mahjong Pretty Girls Battle (Windows, 2015)
60		Poker Relay (DOS, 1990)
45		Ascension VR (Windows, 2016)
45		Lamia's Game Room (Windows, 2016)
44		Dead Exit (Windows, 2017)
44		Uno (Windows, 2017)
44		Pathfinder Adventures (Windows, 2017)
44		Astro Boy: Edge of Time (Windows, 2017)
44		Heroes of Civilizations (Windows, 2017)
44		Koi-Koi Japan (Windows, 2015)
44		PokerStars VR (Windows, 2018)
44		Captivus (Windows, 2017)
42		Pokémon Trading Card Game Online (Windows, 2013)
41		Hidden Dimensions: Xyth (Windows, 2012)
40		Chron X (Windows, 1997)
40		Texas Hold 'Em (Windows, 2006)
40		Yu-Gi-Oh!: Online - Phase 1 (Windows, 2005)
40		Sternenschiff Catan: Das Strategische Weltraumabenteuer (Windows, 2003)
40		Mahjong Taikai II Special (Windows, 2000)
40		Acey Deucy (Windows, 1997)
40		PlayOnline Viewer (Windows, 2003)

Notes: Games similar to Planet Stronghold: Colonial Defense, Games like Planet Stronghold: Colonial Defense, Winter Wolves Studio, Winter Wolves Studio, Windows, Strategy, Tactics, Sci-Fi, Futuristic, Anime, Manga, Cards, Tiles, Visual Novel, Turn-based, 1st-person, PC, Game Similarities.