Sites like Instant Gaming or G2A often sell Steam keys for the Apex edition at discounted rates. System Requirements for Arma 3 Apex
Bohemia Interactive occasionally hosts "Free Weekends" on Steam, allowing players to download and play the full game for a limited time. Purchasing Options & Discounts download-arma-3-apex-pc-game-full-version-free
The game and its expansions, like Apex, frequently go on sale with discounts up to 75% off . Sites like Instant Gaming or G2A often sell
You can often find the Arma 3 Apex Edition or Ultimate Edition on Steam which bundles the base game and DLCs at a lower total cost. You can often find the Arma 3 Apex
Arma 3 and its Apex expansion are not officially available as a free download for the full version. The game is a and typically requires a purchase.
Owners of the base Arma 3 game receive all major platform updates for free, which include new features and enhancements even if you don't own the Apex expansion.