Trojan, released for the NES, is an action game that bears a similar title to Trog! however, its gameplay and developer are different. Unlike the American Sammy title, details regarding the developer and exact release date of the European version of Trojan are scarce. However, both versions of the game appear to share similar themes of combat and adventure.  The objective in Trojan typically involves navigating through levels overcoming enemies and obstacles.  While the specific gameplay mechanics differ from Trog!, it likely shares the same 8-bit charm in its visuals and audio design, creating a somewhat classic NES experience. Further research into the game's development and release would be needed to provide a more comprehensive introduction.

Trojan (Europe)

Triathron, The (Japan)