Generated from prompt: "Create a simple 2D Temple Run style endless runner game using HTML, CSS and JavaScript. Requirements: - Player runs automatically - Press space to jump - Obstacles appear randomly - A monster chases the player from behind - Game over when monster catches player or hits obstacle - Use canvas - Provide complete working code in one HTML file " (fallback)
Forest Platformer runs on your own. antics.gg is where the multiplayer ones live — free browser games with live rooms and a shared leaderboard. Send the link, they open it, everyone is in the same game a second later.