Steel Aces - Open Play Weekend

Steel Aces opens for a free Open Play weekend on September 25–27. What a three-person German team learned about servers, vendors, and players.

By Michael SchmotzGuest|Last updated: September 22, 2026|5 minutes read
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Steel Aces - Open Play Weekend
From September 25 to 27, Steel Aces opens its gates for an Open Play weekend. It is a free-to-play tank MMO, and the weekend is a chance to get a head start. What matters in a match is tactics, awareness, and skill. We are Armative Studios. Three developers, in Germany, building the game in collaboration with GuardingPearSoftware. In Steel Aces you take historically authentic vehicles onto the field. Combat is line of sight, and the damage model is component-based. Impact angle, range, and where the shot hits all matter. Whoever positions carefully and aims well has a real edge. The fights stay tank against tank: we left out artillery and aircraft so both sides meet on equal footing. There is no premium ammunition, no pay-to-win, and no unfair random roll that decides the battle. Here is a short look at the game: Steel Aces video (opens in a new tab). What we learned doing this.

An MMO will eat the team

An MMO is a huge amount of work, and almost none of the heavy part is what players see in a trailer. Server structure. Deploying that structure. An account system. Progression. Each of those is its own project. Together they can swallow a team of three before a single public match feels finished. Anti-cheat belongs in the same pile. In competitive multiplayer it is essential. A lot of plug-and-play tools only get you part of the way. The cases they miss, the player who finds the gap, the weekend you spend on something that is not a new tank: that remainder is still yours. We put an unreasonable amount of work into getting through that wall. It was not always fun, so be sure of that if you are going to tackle something similar.

Pick vendors you can actually reach

Three choices carried a lot of the online side. We work with 4Players in Germany. They are a strong team, and we can actually talk to them. That kind of direct line is rare once the vendor is the size of Amazon, or another company at that scale. When something breaks, a person on the other side matters more than a status page. Nakama is the backend we built on. It is a solid foundation and a good place to start. The warning shows up when you grow. Costs need a hard look before you scale. A custom deployment and rented servers are different bills, and the difference shows up when the player count stops being a test.

Players review the tree, not the label

Community is the part we were least ready for. Players judge what is on screen. If a placeholder tree is purple, the report will be that the tree looks bad, even when the texture itself says "placeholder." Expectation management is part of running a test. It is not a soft skill you add after the build is stable. Our early tests made that concrete. We were flooded. People arrived expecting a finished game. Our goal for those builds was narrower: get the netcode running at all. The players still left disappointed, because they cannot see the goal you wrote on a whiteboard. Running those tests is a lot of work on its own. The structure that held was simple. Keep the test small. Scale it only when that small version is actually stable. Set up bug reporting before you invite anyone. Many players do not have the background to write a deep report. What arrives is "the game doesn't work, what do I do?" If there is no path for that message, you do not have a test. You have a support queue with no one on the other end.

Join the Open Play

From September 25 to 27 the gates are open. Download the game, register, and get a head start.

Play Steel Aces

About the author

Michael Schmotz is a developer at Armative Studios (opens in a new tab), the three-person team behind Steel Aces, a free-to-play tank MMO made in Germany.
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