Mining & Tunneling Simulator

I went in hoping for something in the vein of a lean construction sim where careful logistics would matter. What I found instead is a 2014 relic that has aged badly and carries a community verdict that is hard to argue with: Steam sits it at 21% positive across 47 reviews, and spending any time with it tells you exactly why. The core loop is more involved than the title suggests. You begin each level by placing TNT charges to blow open a mountain face, then coordinate a shovel dozer and dump trucks to clear the rubble before the tunnel boring machine can even be staged. Once the TBM rolls in, the game shifts into a multi-threaded logistics puzzle: concrete plates and fuel have to be loaded onto trains manually and dispatched on your schedule, the drill head accumulates wear and needs periodic repair, and the TBM heading must be actively corrected or you will lose the level. A fire safety van handles spontaneous blazes and water leaks. On paper, that is a reasonable number of spinning plates for a niche sim. In practice, the execution is the problem. The PhysX-based vehicle physics are fragile enough that the developer had to ship a hard reset button for cars that glitch out on collision geometry, which tells you most of what you need to know about the underlying engine quality. Certain levels have documented progression blockers: a TBM drill head that jams repeatedly at a fixed completion percentage, a camera that drifts away from the cab making the machine unsteerable, and level-load crashes that can corrupt progress. These are not edge cases reported by one unlucky player; they show up consistently in community feedback and have not received meaningful patches. Performance is also reported as disproportionately demanding relative to the visual output, and the Steam version draws additional criticism for missing textures and degraded reflections compared to the pre-Steam release. From a strategy angle, the game does have a skeleton of genuine decision-making. Drilling speed versus maintenance frequency is a real trade-off: push the TBM hard and you risk cascade failures from worn equipment; play conservatively and you may miss level time targets. The control room check-in loop adds a light management rhythm. But none of that depth survives contact with the bugs. A late-level crash undoes whatever resource planning you executed, and a jammed drill head does not care how well you managed your concrete train. No mod ecosystem exists to community-patch these issues, and developer support has been quiet for years. Who should consider it? The only honest answer is players with extreme tolerance for old, unpolished sims who find the specific subject matter compelling enough to work around crashes manually. If you have ever genuinely wanted to operate a tunnel boring machine through a campaign structure and nothing else on the market scratches that itch for you, this is the only game doing it. Everyone else will run into a game-breaking bug before the mid-point and have nowhere to go. Diego, Scout Team

Valve rates this game Steam Deck Playable.

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