Five Major Games Are Free on Steam Until Mid-September

Steam has placed five significant titles at zero cost, including the latest Borderlands and a fresh F1 simulation. The offer expires on September 14, but players who claim these games now will keep them permanently in their libraries. This is not a trial period or a limited-time weekend pass; once downloaded, the games remain yours indefinitely. The selection is eclectic, ranging from a Mars colony simulator to a medieval brawler, offering a diverse mix of genres for the price of nothing.

According to GN technics/gaming (en-US), this bundle includes some of the most anticipated releases from the past year. For players considering purchasing these titles at full price, it is advisable to wait until the free window closes. The lineup features a remastered sci-fi city builder, a current-generation racing sim with new content, a co-op heist shooter, a large-scale medieval combat game, and the newest entry in the Borderlands franchise.

Racing sim includes future season content

The inclusion of F1 25 stands out because it arrives bundled with the 2026 Season Pack. This adds two new teams, Audi and Cadillac, along with new drivers and a Madrid track. Since the base game was released only in May 2025, this is not old back-catalog filler. It is a current racing simulation with forward-looking downloadable content attached for free. The trade-off is that this specific bundle will no longer be available at this price after the deadline.

Mars colony sim features mysterious cubes

Surviving Mars: Relaunched is a remaster of the award-winning sci-fi city builder. The game tasks players with recolonizing Mars, managing resources, oxygen, and colonist morale while dealing with sandstorms. The description mentions mysterious black cubes appearing without explanation, adding a layer of sci-fi mystery to the management gameplay. It is a complex strategy title that requires careful planning and a curious attitude toward the unknown elements in the environment.

Shooter options cover stealth and chaos

For players seeking action, the bundle offers two distinct experiences. Crime Boss: Rockay City is a co-op heist shooter for one to four players, blending stealth with open combat in a roguelike structure. It serves as a temporary alternative for fans of open-world crime games. In contrast, MORDHAU focuses on fast-paced medieval combat with up to 64 players, featuring castle sieges and cavalry charges. While one emphasizes narrative and teamwork, the other prioritizes large-scale, high-speed combat and character customization.

Borderlands 4 rounds out the list, having shipped in September 2025. Its presence on a free list is notable given its recent release. Players choose from four Vault Hunters to fight against a dictator on a new planet, engaging with billions of guns and bosses designed for specific takedowns. The game is known for its humorous dialogue and over-the-top action. With five different moods and genres represented, the only catch is the strict September 14 deadline for claiming these permanent additions to your library.