: The .7z extension indicates it is compressed with 7-Zip . You will need a utility like 7-Zip or WinRAR to extract the game files before playing.
The specific naming in your file suggests a community-distributed version: RaiOhGar - Darkforze (Juegos Ganso).7z
: This version likely includes a Spanish translation patch not found in the official English Steam release. RaiOhGar - Darkforze (Juegos Ganso).7z
Developed by GapTax and published by Kagura Games, RaiOhGar is a turn-based RPG that blends giant robot (mecha) combat with a romantic subplot. RaiOhGar - Darkforze (Juegos Ganso).7z