Inertia

Inertia is a first-person platformer focused on free-running. You navigate suspended platforms and other obstacle-filled courses by moving quickly and chaining jumps and parkour actions.

Its 48-plus original levels increase in difficulty. Running, sliding, jumping, double-jumping, and wall-running are used to cross gaps and maintain momentum; some courses also feature ziplines.

Players can compare times on global level leaderboards and create custom levels in the in-game editor. Steam Workshop support lets players share and access community-made courses.

Enjoyment is mixed across these reviews. Some players describe the courses as fun and engaging, especially when they get into the rhythm of precise jumps and fluid movement or work through increasingly difficult levels. Others find the movement unreliable or frustrating, particularly wall-running, and several say the gameplay or levels become repetitive.