Moves of the Diamond Hand, an Early Access dice-based RPG from musician and game designer Cosmo D, asks players to live inside constant roll results—strange conversations, weird skills, and high-stakes uncertainty. On PC, macOS, and SteamOS (including the Stea
From its opening minutes. Moves of the Diamond Hand doesn’t ease you in so much as pin you to the table. You’re going to have a lot of strange conversations. You’re going to roll a lot of dice. The game treats that bargain like the point—an unfinished. irresistibly weird roleplaying experiment that’s already more imaginative than it has any right to be.
It’s an Early Access video game available on PC. macOS. and SteamOS. including the Steam Deck. where this reporter played. The developer behind it is musician and game designer Cosmo D, working through Cosmo D Studios. Visually. the game wears a 2000s-era first-person RPG or immersive sim look: environments are grimy. stark. and blocky; characters’ features sit across smooth heads that look too small for their faces; an eerie soundtrack pulses over everything.
You arrive on a train and quickly meet an old mentor, disgraced by some kind of political scandal. Your next choice is direct and slightly absurd: you express your desire to join Circus X. a powerful organization. and then you declare which of several wildly different paths you’ll take to get into its fold. One option points toward the city council. Another might push you toward crafting the perfect sandwich. Still another steers you toward joining the best band.
Those choices feed the game’s central mechanic. Moves of the Diamond Hand gives you one upgradeable die for each of seven stats—Physique and Observation sit alongside more idiosyncratic ones like Cooking and Music. When the game wants a challenge. it rolls a die tied to one of those attributes. and you have to match or beat it with your own roll.
The longer you stand in the station—the more that system multiplies into a full ecosystem. Once outside. complexity quickly stacks: cooking. performing music. laundering disguises. and mixing cocktails. each tied to additional dice with unique quirks. You can selectively re-roll dice in a style similar to Yahtzee. adding strategy to encounters instead of turning every moment into pure luck. Your final result—win or lose—then gets converted into experience points.
The mechanics weren’t invented from scratch. The basic system was introduced in Cosmo D’s last game, Betrayal at Club Low, but Diamond Hand presents it in a more flexible and elegant form. (There’s also a disclosure: this reviewer’s husband provided outside feedback for Cosmo D’s games.)
At first, the whole thing can feel intimidating, because the game asks you to roll for virtually everything. Small talk becomes a dice encounter. Opening a door becomes a dice encounter. Verbal exchange becomes a dice encounter. But the game also lets you ease into those options quickly.
And it’s not randomness without guardrails. Some rolls can be mathematically impossible to win or lose at a given skill level. Even then. the game still allows for consequences that aren’t determined only by a binary outcome—safe challenges can still damage your health or hand you an unwelcome status effect. preventing the system from turning into unending. rote “either it works or it doesn’t.” If you fail an action. you can retry most of them. but the second attempt becomes slightly more difficult. That forces a constant. human kind of judgment: when do you take the first leap. and when do you spend your chances on a redo?.
That low-level risk matters in how the world feels. Even simple spaces can feel substantive and engaging, not something to rush through just to reach “the real” parts of the game. The ambient uncertainty also pushes against the usual RPG reflex to sprint past environmental detail and flavor text.
As you repeat skill checks, you start absorbing the game’s odd internal logic. The setting is Off-Peak City. a garish metropolis shaped by the machinations of sinister corporations. corrupt politicians. and shady operatives—yet also packed with musicians. restaurateurs. and underground tailors. It’s a neon retro-future for streetwise aesthetes, and the game makes sure niche skills aren’t just trivia.
Music, in particular, becomes hard to ignore. Its uses include sewing—machines can. among other options. be operated by improvisation—calming aggressive animal-human hybrids by whistling tunes. and mixology performed “rhythmically.” It’s arguably the single strongest power in the game. not because the system tells you so. but because the world keeps giving you openings to turn it into leverage.
Circus X, meanwhile, is a secretive arts institution that influences everything from politics to the sandwich supply chain. The comparison that lands is as sharp as the writing: imagine the Factory crossed with the Freemasons.
Membership doesn’t arrive cleanly. Instead. you get pulled into a local election between a scandal-plagued technocrat. a former boy-band star. and the corporate-controlled clone of a mayor from decades past. In the roleplaying logic of a Maltese Falcon-style setup. everyone’s scheming for control of a sentient Big Mouth Billy Bass. And hovering behind it all is the mysterious, anarchic Diamond Hand, frequently alluded to but never explained.
The story keeps drawing parallels to real-world patterns, but it doesn’t stop at metaphor. One example is a company in Off-Peak City pumping the place full of clones. replacing human artists with corporate-guardrailed regurgitations of old media. In Diamond Hand’s version of that idea. clones aren’t just copycats; they’re conscious beings frustrated by creative limits and lack of autonomy. Human characters, meanwhile, wrestle with their own relationship with nostalgia and artistic taste.
The result is a hard-boiled sci-fi thriller built from everyday oddities: subway busking. finding library books. stumping for politicians. harvesting lettuce. arguing about jazz. and doing laundry. The game keeps the “lizard-brain” appeal of nonstop chance. but wraps it in dialogue and structure that make those oddities feel intentional rather than random.
There’s a catch, and it’s tied to where the game sits today. Most of Diamond Hand’s main quests end in roadblocks because the Early Access build includes only the first two of six chapters. The next chapter is scheduled for this summer, and the full launch is set for spring 2027.
Even unfinished, it’s dense and tantalizing. It delivers absurd premises and dry humor with a straight face. Some jokes double as actual mechanics—for instance, local pizza-makers require everyone to bake their own pie, so if you don’t like your order, the responsibility doesn’t go anywhere else.
You also gain experience points for letting characters ramble through their backstories and opinions. The game’s reward system lands somewhere between a sly joke about RPG infodumping and a clever, straightforward decision—dialogue that can pay off even without that prize.
Dystopian elements still hang in the air. but there’s an idealistic current running underneath: a world where art—good or ill—deeply matters. Diamond Hand may be a work in progress. but it already feels like a recipe for obsession: chasing skill and perfection. chasing the world’s greatest sandwich. and chasing the string of lucky dice rolls that might finally get you there.
Moves of the Diamond Hand Cosmo D dice-based RPG Early Access PC gaming macOS SteamOS Steam Deck Circus X Off-Peak City music stat Cooking cybersecurity technology news