RaRa Studio is an independent game studio in Tbilisi, Georgia. Every title starts as a model: simulated, stress-tested, and documented before the art goes in. Spec sheets and verifiers are part of the product, and Vice Run is the first title through the pipeline.
Every title starts as a math model. The return, the volatility and the ceiling are fixed and audited before any art goes in.
The production engine is run through Monte Carlo audits and the report ships with the game, so the numbers on the spec sheet are measured, not promised.
Math spec, verifier and integration docs come with every build. Operators and labs get the same figures the players can check.
The frozen model: return, volatility, ceiling and the price of every feature.
The report from running the production engine, with its standard error stated.
A script that rehashes any round from the published seeds and recomputes its result.
The server-authoritative round API, the wallet calls and the client build.
The full game against a demo server, so a platform can play before it signs.
Every round is committed before it opens and verifiable after it ends. Operators do not have to take our word for it, and neither do their players.
Before a round opens, the server publishes sha256(server_seed). That hash pins the crash point in place before the first bet is taken.
The round runs. crash_at derives from HMAC-SHA256(server_seed, client_seed:nonce), so neither side can steer the outcome mid-round.
After the bust, the server reveals server_seed. Anyone can rehash it, recompute crash_at, and confirm both match the record.
THE REFERENCE VERIFIER AND FULL DERIVATION SHIP WITH THE INTEGRATION DOCS.
$ rara verify --game vicerun --round 001042 # hash published before bets opened server_seed_hash sha256:9f2c71a84be…c30be81a client_seed vicerun-demo-7f3a nonce 001042 hmac = HMAC_SHA256(server_seed, client_seed + ":" + nonce) = 7c2e4d09aa61b8e2…10f4b90f h = int(hmac[0:8], 16) crash_at = max(1.00, floor(99 * 2^32 / (h + 1)) / 100) = 3.47x $ rara reveal --game vicerun --round 001042 server_seed 4b7dd21c09aae5…f133c2e9 sha256(server_seed) == server_seed_hash ok recompute(crash_at) == 3.47x ok verify == true
An independent studio working on GMT+4, so integration calls fit both European and Asian office hours. The site speaks English, Spanish, Chinese, Hindi and Georgian.
Integration docs, the full math spec, and playable builds are available under NDA to operators, aggregators, and platforms.