ISL (Indonesia Soccer League) is a football simulation game featuring Indonesian club teams and a complete league system consisting of 20 teams. The game delivers a competitive football experience inspired by popular esports titles such as FIFA and Pro Evolution Soccer (PES), emphasizing realistic match flow, team tactics, and season-based progression. Built with 3D graphics using ActionScript 3 and the Flare3D engine, ISL was developed to bring a structured league format and authentic football gameplay to a browser-based platform. The game was published by Froyogames.com and designed to appeal to both casual players and football enthusiasts seeking a localized league experience.