Mechabellum 2.0 arrives on Steam on September 22, 2026, with a nine-planet roguelite mode, a new Centurion unit, wider army options, and a free edition for newcomers.
Mechabellum will receive its biggest update yet on September 22, 2026. Version 2.0 adds a nine-planet expedition mode, a new combat unit, and a free way for new players to enter the battlefield. The update arrives on Steam with a 40% launch discount running from September 21 to October 9, according to the official GamesPress announcement.
Star Expedition arrives
The main feature is Star Expedition. It moves Mechabellum away from its usual timed rounds. Players can go alone or join two-player co-op. Each commander brings an independent army to the same battlefield. The mode sends players across nine planets, with random units, Techs, reinforcements, and player mirrors drawn from around the world.
Its asynchronous combat system removes the round timer. The mode is still active and demanding. The focus shifts to deployment choices, adaptation, and the careful use of rewards between battles. Each run can produce expedition rewards that affect later attempts. That gives players a reason to try different army compositions instead of repeating a fixed sequence.
The format could make Mechabellum easier to approach for players who prefer planning over speed. Co-op commanders must coordinate their positions and tactics on the same battlefield while managing separate forces. The developer says the random variables are meant to keep expeditions from following identical patterns.
Centurion leads the expansion
Version 2.0 also introduces Centurion, a flexible mech whose role changes with its mode and technology choices. Its precision rifle supports long-range attacks. Dual rifles provide mid-range suppression. In Melee Mode, Centurion can charge into enemy lines. That range of functions makes it less a specialist replacement and more a unit that can change how commanders build and position an army.
Centurion is not arriving alone. The update adds dozens of Reinforcement Cards, Techs, and Specialists, along with extensive balance adjustments. Those changes matter because Mechabellum is built around counterplay. A new unit can change the value of existing counters. New technologies can also change when an army shifts from defense to attack.
The size of the expansion comes with an established audience. Mechabellum has sold more than 700,000 copies on Steam and holds an 84% Very Positive overall rating. Version 2.0 will therefore be tested by existing and returning players rather than only by a launch-day crowd.
Free entry and paid extras
The Mechabellum Free Edition will appear on the Steam store page on September 22 through a new Play Mechabellum - Free Edition button. It includes most of the game's content and lets players upgrade to the full version whenever they choose. Restrictions apply to public chat, inventory capacity, and the speed at which rewards are acquired.
Existing owners receive the 2.0 update at no extra cost. New buyers can purchase the full game during the 40% anniversary promotion. For players who want to try the game before spending money, the free edition is the more useful part of the launch. It lowers the entry barrier without being presented as a completely unrestricted version. The official GamesPress release separates the free update for current owners from the Free Edition offered to newcomers on Steam.
Version 2.0 also introduces Battle Contract progression. The Standard Battle Contract is free and distributed regularly to players. The first contract is built around the game's second anniversary. It offers anniversary cosmetics earned through play, with more rewards planned every few weeks. The Elite Battle Contract is separate paid downloadable content. It normally costs USD 11.90, or USD 7.14 during the launch discount. It immediately grants three exclusive skins and unlocks more cosmetics through matches without an expiry date.
The wider Golden Age Edition costs USD 59.9 at its standard price, or USD 35.9 with the 40% discount. It bundles the base game, Mechabellum: Premium Edition, four Elite Battle Contracts, the Mobile Suit Skins Pack, the Steel Skin Pack, the Gilded Sandworm Skins Pack, and premium avatar frame and emote content. The bundle is aimed at players who already want the full cosmetic package, rather than those simply testing the strategy game.
For a broader look at how Steam launches can use major content drops to widen an audience, the earlier multiplayer rollout for Formula Legends offers a useful comparison in structure, even though the two games target different genres.
What players receive
The confirmed launch package is unusually broad for a second anniversary update. Star Expedition adds a repeatable solo and co-op structure. Centurion expands the battlefield roster. New strategic tools add to the arsenal, and the Free Edition gives newcomers a trial route. The update also includes balance work and the Battle Contract system instead of limiting the anniversary to cosmetics.
There are still practical limits to what can be judged before release. The supplied details do not include independent performance testing, balance results, or evidence about how Centurion will fit into the live competitive environment. They also do not say whether Star Expedition's random variables will create equal strategic value in every run. Those are questions for launch, not missing marketing bullet points.
SteamDB provides more release-period context. Its records show a pre-release test-server entry labelled [Test Server] Update 2.0x4 and dated September 10, 2026. The entry shows that work on the major update was active before the official September 22 launch. It does not establish how the final balance or performance will look.
The commercial structure is clear, though its long-term value will depend on execution. The Free Edition widens access, while paid contracts focus on skins and other cosmetics. Players can inspect most of the game before committing to the full version, but they will face limits on chat, inventory, and reward progression. Existing owners do not pay separately for the central update.
Separate from the 2.0 rollout and Steam availability, Mechabellum was also listed in announcements for a free Epic Games Store promotion running from September 24 to October 1, 2026, as reported by WorthPlaying. That offer is separate from the Steam patch and Free Edition. It gives players another way to access the game during the wider late-September campaign.
Mechabellum 2.0 has a strong player-facing pitch. It adds a slower mode for deliberate planning, a new unit for experienced commanders, and a low-cost entry point for curious newcomers. The feature list alone cannot prove how well the update will work. Still, free access combined with substantial systems content gives the September 22 launch a real chance to refresh the game's strategy ecosystem instead of merely dressing up its anniversary.
Asynchronous combat means players do not have to make decisions against a running round clock. In Mechabellum, that changes the practical value of positioning because commanders can study the battlefield before committing their deployment. The model suits experimentation and co-op planning, but it does not guarantee balanced or equally rewarding runs. Those outcomes will depend on the final tuning. Star Expedition and Centurion are therefore the main tests for 2.0. The update has enough confirmed content to matter, but its success will depend on how well those systems work in play.
