It seems like 2026 is the year of the achievement overhaul. Just as Xbox continues to revamp its achievement system, streamlining the experience across PC and Xbox and adding Mythic Achievements into the mix, Valve is also getting in on the action and rolling out Steam Achievement Sets.

Currently live in beta, this new achievement system completely changes how games handle base achievements versus post-launch DLC expansions, as well as season updates and new game modes. Completionists who have had headaches with these systems for decades can rejoice!

So you've poured 80 hours into a game to hit the 100% achievement mark, then merrily moved on to another game. Only to come back later and see your shiny 100% completion is now 80%. The game released new DLC, and you are now compelled to play it to get that 100% back.

Anyone who's played Vampire Survivors or the RE4 Remake can attest to this pain, though I don't really mind and enjoy the new challenge. Valve, however, is solving this issue with a new system that lets developers group achievements into distinct "sets."

Base game achievements are kept seperate from post-launch DLCs or extra mode, meaning if you 100% the base game you keep your base game completion ribbon regardless of what is added later on.

Beyond seperating DLCs, Valve is ontroducing a few other quality of life upgrades to it's achievement system.

Overall, the changes have been received positively, but developers could add seasonal or time-limited event sets to games that embrace FOMO mechanics, though I think the archiving feature Valve is proposing mostly solves this.

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