Indie developer Swimming Scorpions has announced Engine of Sin, a mech simulator where you operate a massive war machine against monstrous kaiju.

While most massive mech games have you generally piloting the machine from a first-person perspective, Engine of Sin has you play as a human inside the giant mech, managing its power levels, crafting ammunition for its weapons, and feeding its reactor core.

You play as the last surviving member of the mech’s crew and have to learn to master every system against all odds. Turn your giant metal coffin into the ultimate weapon against the huge kaiju beasts and help defend humanity!

Engine of Sin is in development for Windows PC (Steam), though a release date wasn’t announced.

Here’s a rundown on the game, plus its reveal trailer:

Operate a titanic war machine from the perspective of its last surviving crew member in a desperate battle against the otherworldly Kaiju. Balance power levels, craft specialised ammunition, and feed your ever-hungry reactor ⟹ yet the greatest horror may already be sealed within your metal coffin.

Engine Of Sin is a first-person mech simulation game where you pilot a colossal war machine against world-ending Kaiju. Manage your reactor, reroute power between critical systems, salvage the ruins of Earth, and fire apocalypse-grade weapons in battles of epic scale.

Operate the Titanic Mech

Alone inside a towering war machine, you are the last surviving member of its crew. Learn to master every system and turn your metal coffin into the ultimate weapon.

Vent reactor overloads before they trigger a catastrophic meltdown. Redirect power between shields, weapons, and life support. Adjust movement stabilisers, route ammunition feeds, and keep failing systems running in the middle of fierce combat.

Battle the Kaiju

The monsters that ended the world are coming for you. Each Kaiju is a unique nightmare, with distinct abilities, attack patterns, and weaknesses. Adapt your tactics, exploit vulnerabilities, and choose the right arsenal before it tears through your armor or shatters your mind.

Explore and Rearm

Between battles, you venture into the ruins of the scorched Earth, driven by an oath to uncover the weapon that could finally take revenge on the Kaiju.

Salvage what remains of the old world, forge specialized munitions, recover forgotten technology, and undertake perilous missions to prepare for the next battle.

Uncover the Secrets

Dare to unlock the sealed chambers of your war machine. Descend into its metal entrails, uncover the fate of your crew, and confront the presence that lives within. Will you cling to your humanity, or merge with the Engine of Sin? 

Key Features

• Titanic Mecha Simulator – master the systems of an apex war machine
• Epic Battles with the Kaiju – adapt your tactics and unleash overwhelming firepower
• Grimdark Aesthetics – experience horror through 90’s-inspired FPS visuals
• Walking Fortress – explore the four floors of your mech, including crew chambers, weapon altars, medical units, and reactor bay
• Explore the Desolate World – scavenge the ruins of various biomes and earn new materials and technology
• Titan-Class Arsenal – wield 8 massive weapons, including the Multi-Ordance Siege Cannon, Plasma Purge Incinerator, and the Godbreaker Lance for close-range destruction
• Multiple Endings – your choices decide how the story unfolds