Relax Gaming launches Nuclear Tumble with Casino Grounds

Relax Gaming released Nuclear Tumble on 29 October 2026, a new collaboration with Casino Grounds that keeps Tumble gameplay at the centre while adding cash-prize collection and several ways to configure the bet. The studio says the game was built with casual players in mind.

The more interesting change is not simply that the action is fast. In its official announcement, Relax confirms that players can wager Free Spins they have won for a chance to unlock better options. That turns a familiar bonus trigger into a decision about whether to keep what has already been awarded or risk it for a different version of the feature.

Familiar Tumble play, with another choice layered on top

Nuclear Tumble combines the studio’s established Tumble format with cash-prize collection mechanics and multiple bet modes. Relax has not published the detailed terms of those modes in the release announcement, so it would be premature to treat them as interchangeable or to assume what changes under the hood.

Games Product Owner Gary Law described Nuclear Tumble as an ambitious combination of game ideas and said the team had room to experiment with how Tumble play and cash collection could work together. His comment points to the real design pitch: the base idea is deliberately legible, while variety comes from the choices wrapped around it.

That is a cleaner claim than calling the game mechanically simple in every respect. The core may be easy to recognise, but wagering Free Spins introduces a consequential choice whose value depends on the exact rules shown in the game.

Nuclear Tumble follows two very different Relax releases

The launch arrives three weeks after CloudForge, released on 8 October. Relax presented that slot around straightforward play, with Expanding Wilds and Electric Reels providing most of the movement. On 24 September, however, the company launched Money Train 5, a much denser fifth entry in its flagship series with a post-apocalyptic setting, new characters including the Ticket Master, Bomber and Pyromancer, Standard and Ultra modes, and multiple Buy Feature options.

Taken together, those releases look less like a single march toward simplicity than a portfolio strategy: keep some new games immediately readable, while giving established franchises more modes and layers for players who want them.

Relax Gaming’s Nuclear Tumble announcement does not state an RTP configuration, stake range, maximum win or market-by-market availability. Those details can vary by approved version and operator, so the information shown in the deployed game remains the relevant reference.