Christian Steimle, Project Manager for ESA’s ClearSpace-1 mission, puts a hard boundary on what “clean-up” should mean in orbit. For missions like ClearSpace-1, the common agreement is that objects to be removed shall not be broken up or damaged, especially to avoid creating smaller debris that is more difficult to track.

That directly flips the core gameplay loop behind popular space debris games like Hardspace: Shipbreaker. In those simulators, the fun is cutting and exploding derelict spacecraft into salvageable chunks. In real debris removal, generating thousands of high-velocity fragments is the exact nightmare outcome, because some fragments would be too small to feasibly track, yet still large enough to destroy operational spacecraft, satellites, or stations.

So what does ClearSpace-1 actually do instead of demolition? It takes a more holistic approach. Rather than dismantling PROBA-1, the mission aims to capture it with as little initial damage as possible, then guide the combined spacecraft to destruction during atmospheric re-entry. ClearSpace-1 will be launched into a position slightly below PROBA-1 by a dedicated launch. After successful commissioning, the ClearSpace-1 servicer will inspect PROBA-1 in a number of fly-around manoeuvres. Those passes are not just reconnaissance. They validate visual navigation systems and analyze how PROBA-1 is tumbling, so the capture vehicle can respond appropriately.

The capture itself is designed to be delicate. Steimle describes a capture system that will encompass the client satellite, first forming a cage around PROBA-1 and then closing the cage carefully to avoid damaging the client. Once secured, the combined spacecraft must be stabilized before any orbital change. Only then can the system lower its orbit, ensuring both objects burn up safely during re-entry. ClearSpace-1 is designed to demise during re-entry, ensuring on-ground safety and disposal at the same time.

If that sounds more like surgical extraction than scrap-yard teardown, that is the point. It also hints at why space cleanup games get certain physics right while missing the real risk math. One area games do capture well is orbital mechanics. Active debris removal (ADR) missions also face the constraint that even small velocity mismatches can lead to mission failure or damage to the capture vehicle or target. The danger of uncontrolled motion is another match. Tumbling objects are among the hardest targets in space operations, requiring precise, multi-axis propulsion and control systems. Steimle notes future vehicles must synchronize their motion with a potentially tumbling space object and apply the proper control to detumble.

Games also reflect a kind of practical truth about specialization. In Hardspace: Shipbreaker, the toolkit and the way you use it matter. In real missions, the approach can vary by target. ClearSpace’s enclosure system is one example, alongside other methods used in ADR contexts such as robotic arms to nets, harpoons, or enclosure systems. Where simulations diverge sharply is risk tolerance and what happens after you “win” the mission.

In games, mistakes are recoverable. In orbit, a single error can generate long-lived debris fields traveling at roughly 7-8 kilometers per second, turning tiny fragments into deadly kinetic weapons. Then there is the incentive structure. Space cleanup is not about salvage profit in the way many games suggest. While in-orbit manufacturing and recycling are active areas of research, current debris removal efforts are about mitigation, not earnings. Steimle frames the overarching requirement plainly: preserve the space environment around Earth for use by future generations. Removing large objects before first collisions occur is key.

Regulation and orbital regime also matter, and games rarely account for them. In low-Earth orbit, the yardstick is often deorbiting or enabling atmospheric burn-up. In geostationary orbit (GEO), debris is not deorbited because re-entry energy cost is prohibitive. Instead, debris is moved to a higher “graveyard orbit” through orbital zoning. That difference has no real analogue in most gameplay systems, but it is central to how real missions are planned and how decision-makers measure success.

Finally, the competitive landscape is getting crowded. Steimle says that agencies and private companies across Europe, the United States and Japan are developing competing capture technologies and mission architectures. Low-Earth orbit operations will likely favor agile, highly maneuverable vehicles for complex rendezvous and stabilization tasks. GEO missions will involve larger, less dynamic spacecraft performing long-duration servicing and relocation. What stays consistent across all of it is the guiding principle: do no harm to the orbital environment. There is little room for improvisational cutting and explosive decompression. Instead, the future of orbital cleanup depends on autonomy, precision guidance, and tightly controlled interactions with fragile, often unpredictable objects.

For boards, investors, and executives watching space as more than a marketing deck, the second-order lesson is brutal but useful: the business of cleaning orbit is not won by “better demolition,” it is won by systems that can capture without breaking the problem into a worse one. The strategic stake is not just one mission success or one satellite disposed. It is whether future access to orbit stays available at all, before Kessler syndrome becomes an operational reality. In other words, the fantasy sells lasers and explosions. Real debris removal builds cages, validates navigation, and chooses the option that avoids creating a debris future you cannot afford.