Steam Deck, according to the developers, runs their games "flawlessly."

Developers are getting their hands on Steam Deck development kits, and they're sharing their first impressions on social media.

Valve announced last week that "limited batches of Steam Deck dev-kits" were being sent out to partners in a blog post. Developers will receive "functionally identical" copies of what customers will receive, according to the company, but "the dev-kit program gives us the chance to guide game developers through the process of getting their games on Steam Deck."

Mike Rose, the founder of indie publisher No More Robots, has some of the most comprehensive impressions. They claimed in a series of tweets that several of their games, including Descenders, a mountain biking game, and Yes, Your Grace, a medieval RPG, run "flawlessly." Even a game in development runs "near-perfectly" on the platform, requiring only minor input and resolution adjustments.

Sekai Project, a visual novel publisher, demonstrated a number of its titles on the Steam Deck, implying that even games with a 4:3 aspect ratio look "pretty good" on the 16:10 screen.

Cliff Harris of Democracy developer Positech Games gives the game arguably the best early review. The Steam Deck, they say, is "really, really cool." The most recent installment in Positech's Democracy series runs "ok," but the framerate is "perfect," and the sound is "really good."

All of these early impressions appear to come from smaller developers and publishers, and don't necessarily reflect how the Steam deck will handle fast-paced shooters or open-world RPGs. If the platform can't handle every game on Steam - running at least 30 frames per second - Valve says it'll consider it a bug, but it's unclear how well the handheld device will handle future big releases.