Case Arena: Case Opener Sim

Contains adsIn-app purchases
Content rating
Teen
0+
Downloads
Content rating
Teen
Simulated Gambling
Learn more
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About this game

Case Arena is a case opening simulator built on real market data. Open cases, unbox skins and knives, and grow an inventory you can actually put a number on.

Every container is modelled on the real market: 330+ containers, 9,400+ items, prices that follow real market values and the standard drop rates the community knows by heart.

What you can open
- 330+ containers: weapon cases, sticker capsules, souvenir packages, music kit boxes, patch packs, pin capsules and graffiti boxes
- 9,400+ items with rarity colours, wear from Factory New to Battle-Scarred, and float values
- Three unboxing animations: roulette reel, slot and cards

19 game modes in one app
Case opening, case battle, upgrader, trade up, craft, mines, plinko, roulette, crash, dice, coinflip, blackjack, hi-lo, keno, jackpot, poker, minesweeper, snake and memory.

Honest odds
The drop table is on screen, not buried: 79.92 percent Mil-Spec, 15.98 percent Restricted, 3.20 percent Classified, 0.64 percent Covert and 0.26 percent Exceedingly Rare. You can read the full contents of any container before you open it.

Also inside
- Inventory with total value, sorting and instant selling
- XP levels, ranks and achievements to chase
- Case battles in 1v1, 1v1v1 and 2v2 formats
- Seven interface themes and a full soundtrack
- 23 languages
- Plays offline, no account and no registration

Case Arena is a simulator. Every skin, case and balance in the game is virtual and has no real world value. Nothing can be traded, sold, cashed out or transferred outside the app.

This game does not offer real money gambling or an opportunity to win real money or prizes. Practice or success at social casino gaming does not imply future success at real money gambling. Intended for an adult audience.

Case Arena is an independent fan made simulator. It is not affiliated with, endorsed by or sponsored by Valve Corporation. Counter-Strike, CS:GO and CS2 are trademarks of Valve Corporation. Item and case names are used only to describe the simulated content.

Contains ads and optional in-app purchases.
Open cases, battle rivals and unbox rare skins in a full case simulator.
Updated on
Sep 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

- Knives and gloves hide behind the gold "Rare Special Item" tile until unboxed, like CS2; tap it for the pool and odds
- Newest case selected at launch
- Inventory: search, numbered pages, multi-select and bulk sell
- About section: version, support e-mail, release notes, update check; prompt when Play has a new version
- CS2-style reel feel, new sound set, audio fixes
- Item and case names in 19 languages
- Intro tour removed; sound effects label fixed
- Performance: zero-ANR pass