Rumble Racing Star is a multiplayer Web3 racing game developed by South Korean studio Delabs Games, replacing traditional karts with stylized lawnmowers. The project combines arcade racing, characters with unique abilities, items for attacking opponents, vehicle customization, and blockchain-based assets. The game was introduced in 2023 and officially launched in early 2024 on PC and mobile devices. Its Web3 infrastructure was initially associated with Polygon, while later blockchain components were moved to Arbitrum, where Star Garage, rewards, and related smart contracts operate.
Contents
- What Is Rumble Racing Star and Who Developed the Web3 Game?
- Rumble Racing Star Gameplay: Racing, Lawnmowers, and Game Modes
- NFTs, PFPs, and Delabs Adventure Pass in the Gaming Ecosystem
- Arbitrum, $RRS, and the Project's Web3 Infrastructure
- Rumble Racing Star Development and Its Role in the Delabs Ecosystem
1. What Is Rumble Racing Star and Who Developed the Web3 Game?
Rumble Racing Star became the first major gaming project from Delabs Games, a Web3-focused studio associated with South Korean company 4:33 Creative Lab. The studio was founded by James Junmo Kwon, who previously led Nexon Mobile and participated in the development of a major mobile gaming business. The Delabs team combined experience from the traditional gaming industry with experiments in digital ownership and blockchain infrastructure.
Rumble Racing Star was developed by specialists with experience in racing games. One of the key contributors was Byunryang Choi, who had previously worked on Crazy Racing KartRider and other titles. As a result, the core concept of RRS was built primarily around familiar arcade racing mechanics, while Web3 features were introduced as an additional layer for digital items, NFTs, and interactions with external collections.
In 2023, Delabs raised $4.7 million in funding. The round was led by Hashed, with participation from Polygon Labs, Spartan Labs, Planetarium, and Merit Circle. The funding was intended to support several Web3 projects developed by the studio, including Rumble Racing Star, Space Frontier, and MetaBolts.
Following a series of closed tests, Rumble Racing Star launched in early 2024. The game was available on Windows, Android, and iOS, allowing users to start playing without being required to purchase an NFT. According to Delabs, the project reached approximately 10,000 daily active users within the first five days after launch. The initial strategy therefore focused on combining a conventional free-to-play audience with Web3 users.
2. Rumble Racing Star Gameplay: Racing, Lawnmowers, and Game Modes
The core gameplay loop is built around short competitive races. Players control modified lawnmowers and attempt to cross the finish line before their opponents. However, results are determined by more than speed alone: tracks feature items, obstacles, and special abilities that can be used to attack competitors or change the course of a race.
Characters have their own abilities, while vehicles differ in their characteristics. Lawnmowers can be customized with decorative elements, including flags, numbers, paint schemes, and decals. As players progress, they can also unlock additional vehicles and collectible items. This structure combines conventional arcade progression with cosmetic personalization.
| Component | Type | Role in Rumble Racing Star |
|---|---|---|
| Race | Main Mode | Competitive multiplayer races featuring items and abilities |
| Premium Race | Competitive Mode | Seasonal races with a separate reward system |
| Lawnmowers | Vehicles | Used in races and differentiated by gameplay characteristics |
| Drivers | Characters | Feature different visual designs and gameplay abilities |
| Star Garage | Web3 Interface | Provides access to wallets, rewards, NFTs, and blockchain features |
| Star Badge | Digital Collectible | Records selected achievements and participation in events |
Ranked competitions and temporary events also played a separate role in the gameplay structure. Users could earn victory points, advance through leagues, and participate in special Event Modes. Updates introduced additional vehicles and limited-time competitions, including Race for Riches, which incorporated a dedicated Web3 infrastructure layer.
The model did not require mandatory blockchain interaction for the core gameplay experience. Users could play Rumble Racing Star as a conventional multiplayer racing game, while connecting a wallet unlocked additional functionality. This reduced the entry barrier compared with early play-to-earn games, where owning a wallet and purchasing NFTs were often required before users could begin playing.
3. NFTs, PFPs, and Delabs Adventure Pass in the Gaming Ecosystem
The Web3 component of Rumble Racing Star was not limited to the game's native assets. Delabs integrated third-party PFP collections, allowing holders of supported NFTs to use them within the game. Users could connect a wallet to their account, after which the system verified ownership of compatible tokens.
A supported PFP could be used as a profile image and displayed on the player's vehicle flag. Certain partner collections also provided access to corresponding in-game characters. NFT projects that appeared within the RRS ecosystem included Goblintown, y00ts, and other Web3 communities.
Key Features of the Rumble Racing Star Web3 Model:
- arcade multiplayer racing with stylized lawnmowers;
- free access to the core gameplay without a mandatory NFT purchase;
- characters with individual gameplay abilities;
- vehicle customization using various visual elements;
- connection of external PFP NFTs to player accounts;
- use of compatible NFTs in profiles and vehicle customization;
- Star Garage for managing Web3 features;
- Star Badges for recording selected achievements and activity;
- Delabs Adventure Pass with additional ecosystem benefits;
- blockchain infrastructure on Ethereum and Arbitrum for different asset categories.
Another component was the Delabs Adventure Pass, an NFT connected not only to Rumble Racing Star but also to the studio's broader ecosystem. Holders received various benefits, including early access to selected content, in-game items, NFT airdrops, and Battle Pass-related opportunities. The Adventure Pass could also be used within Delabs' staking mechanism.
This approach demonstrates a form of NFT interoperability within a gaming ecosystem. A digital asset exists independently from a specific game session, while the application verifies ownership and provides corresponding functionality. However, the practical utility of an NFT always depends on developer support: simply holding a token in a wallet does not guarantee compatibility with other games.
4. Arbitrum, $RRS, and the Project's Web3 Infrastructure
During its early development, Rumble Racing Star was presented as a Web3 game built around Polygon infrastructure. The project was showcased together with Polygon at GDC 2023. In 2024, Delabs announced an expansion of its collaboration with Arbitrum, after which RRS began using the Layer 2 network for part of its Web3 operations.
Star Garage documentation identifies Arbitrum as the network required to interact with the relevant Web3 features. Smart contracts for RRS Wallet, Star Badge, Daily Spin, Cartridge, and Race for Riches Ticket were deployed on Arbitrum. At the same time, some earlier Delabs assets, including Adventure Pass and its associated staking contract, operate on Ethereum.
Rumble Racing Star also introduced $RRS. According to project documentation, users could obtain the asset by completing daily missions and referring new users. Holders or users staking a Delabs Adventure Pass could receive increased daily rewards. $RRS did not have a defined maximum supply, while the project also envisioned a mechanism through which it could be exchanged for the broader Delabs ecosystem token under specified conditions.
This structure illustrates the separation between the conventional game economy and its blockchain layer. Racing, vehicle control, and most moment-to-moment gameplay operate like a traditional online game, while blockchain is used for selected rewards, collectible assets, NFT verification, and Star Garage operations. This approach avoids recording every vehicle action on-chain and reduces the gameplay's dependence on blockchain transaction confirmations.
5. Rumble Racing Star Development and Its Role in the Delabs Ecosystem
Rumble Racing Star became Delabs' first public test of a strategy combining traditional game design with Web3 infrastructure. Following the launch, the team regularly introduced new vehicles, competitive seasons, and limited-time events. For example, the Race for Riches update in summer 2024 added the legendary-tier lawnmowers Nitro and Snuggle Rider, along with an expanded system of events and rewards.
The project continued to receive technical updates later in its lifecycle, with the iOS version of the application updated in September 2025. At the same time, Delabs' broader strategy changed considerably. The company expanded its ecosystem, experimented with new games, blockchain networks, and tokenized economic models, while Rumble Racing Star was no longer positioned as the studio's only central product.
By 2026, Delabs' public positioning had changed significantly compared with the period when RRS launched. The company's main platform shifted its focus toward a broader Web3 gaming ecosystem and newer gaming products. At the same time, public Rumble Racing Star channels reported the completion of a particular stage of the service's development and restrictions on new registrations and purchases. Historical gameplay and tokenomics mechanics should therefore be distinguished from Delabs' current strategy.
Rumble Racing Star remains an illustrative example of a Web3 game in which blockchain was positioned outside the core arcade gameplay loop. Players received conventional multiplayer racing, progression, and customization, while NFTs, Adventure Pass, Star Badges, and $RRS created an additional digital asset layer. The project demonstrates both the potential of this model — including portable PFPs, verifiable ownership, and programmable rewards — and its limitations: the long-term value of gaming Web3 assets ultimately depends on user activity, continued service support, and the developer's broader strategy.
