Iron Grave: Planet 9 is an action indie sci-fi mecha survivor game set on a distant world a century in the future. Players take on the role of a third-generation mech pilot who fights alongside companions while uncovering the layered history of humanity's expansion into space. The experience centers on piloting customizable mechs through hostile environments filled with alien creatures, collecting resources to drive personal and mechanical growth across procedurally varied maps.
Gameplay
Core play revolves around controlling mechs that feature unique skills and a full evolution system. Each mech supports three major branches, with every branch providing two distinct evolution paths that create numerous affix combinations for experimentation and optimization. Combat involves clearing waves of alien sci-fi monsters that belong to unique ecosystems on each map. Defeated enemies drop chipsets and evolution cores that players use to strengthen their mech, unlock research options for new units, and push further into Planet 9's mysteries.
Levels emphasize distinct atmospheres and mechanics that shift with each campaign stage. Players traverse deserts, mountains, misty ports, and sci-fi architectural complexes while completing varied mission objectives. Constant changes in mechanic combinations keep encounters fresh across nearly half a century of in-game timeline progression alongside squad members. Resource management and strategic evolution choices form the central loop, rewarding careful planning and adaptation to the terrain and enemy types present.
Game Modes
Progression occurs through a structured campaign of individually designed levels. Each stage presents its own combination of mechanics, enemy ecosystems, and environmental challenges that build on prior experiences. The single-player focus allows uninterrupted exploration of the narrative while testing different mech configurations and evolution paths against escalating threats. No separate competitive or cooperative modes appear in the core design, keeping attention on the evolving campaign structure and personal mech mastery.
World and Story
Rich sci-fi world-building supports a deep storyline revealed through abundant narrative text scattered across the maps. Exploration uncovers the turbulent history of humanity's journey into the cosmos spanning hundreds of years. Every map contributes unique details to the lore, connecting the immediate survival challenges on Planet 9 to broader events that shaped the third-generation mech pilots and their companions. The setting blends futuristic technology with alien ecosystems, giving context to the resource collection and evolution systems that drive advancement.
Is It Worth Playing?
Iron Grave: Planet 9 suits players who enjoy methodical survivor gameplay built around mech customization and incremental power growth. The evolution system and affix variety reward repeated playthroughs of the campaign levels, while the changing mechanics and diverse terrains maintain interest across multiple stages. Those drawn to sci-fi narratives with collectible lore elements will find the story integration satisfying alongside the combat and exploration. Availability on PC makes it accessible for those seeking an indie action title focused on single-player progression rather than multiplayer features. The emphasis on distinct level design and resource-driven upgrades provides a clear path for players who prefer structured campaigns over open-ended sandboxes.