video game, Risk of Rain, action platformer, sci-fi environment, alien creatures, multiplayer, roguelike elements, pixel art style, dynamic weather, rain effects, challenging gameplay, atmospheric soundtrack, space setting, survival mechanics, procedurally generated levels, item stacking, character classes, co-op mode, solo play, boss battles, intense combat, 2D graphics, indie game, Steam release, console versions, power-ups, loot system, exploration, side-scrolling, atmospheric lighting, detailed backgrounds, hidden secrets, replay value, skill-based progression.