Tap Games™ and five categories on one website
The official site onlyplay.net presents the studio as a casino supplier with five content types: Tap Games™, Instant Win, Crash, Slots and Plinko. The Tap Games™ brand sums up the company's thinking – a game should work with a single tap and a round should be over in a few seconds.
The studio claims more than two hundred titles, over 2,000 operator partners and 40+ localisations. These are figures Onlyplay writes about itself; we have not verified them independently.
In the Dukat.bet lobby the studio goes by ‘Onlyplay’. It is one of the suppliers that form the main core of the instant part of the lobby.
Headquarters, founding year, licence: three blank fields
For the other studios on our site we know at least something about the company behind the brand. Not with Onlyplay. Its site gives no address, no founding year and no licence – we found none of them on the homepage, in the terms, in the privacy policy or in the responsible gaming section.
Other websites make various claims about Onlyplay licences. We do not adopt them, because the studio itself does not confirm them. We would rather stay with what the maker publishes for each game: RTP, maximum win, release date and technical notes.
For you this means one thing: do not look up the casino itself or its licence on the studio's website. Those are two separate matters.
The ‘X’ family: six titles, one mathematical base
The heart of the Onlyplay instant range is a crash line whose titles carry an X in the name: CosmoX, GoalX, ChiX, CricX, ScoreX, plus Cricket Crash. According to the maker, they all share these parameters:
- RTP of 97%,
- maximum win of 10,000×,
- Provably Fair,
- file size under 1 MB.
The difference lies mainly in the theme and in how the growing multiplier is shown on screen. In CosmoX a rocket flies, GoalX uses a football motif, and in ChiX a chicken launches into space. The cricket versions are clearly aimed at other markets.
In practice, choosing between them is a matter of taste, not maths. If one game looks better to you than another, you need not worry that you are worsening your terms – at least as long as the casino runs the version with the maker's parameters. The game's info panel shows which RTP is set.
Four Onlyplay games from our reviews in numbers
The table data come from the maker's official pages as of 11 October 2026.
| Game | Type | RTP | Max. win | Released |
|---|---|---|---|---|
| CosmoX | crash | 97% | 10,000× | 12 November 2024 |
| GoalX | crash (football) | 97% | 10,000× | 19 November 2024 |
| ChiX | crash | 97% | 10,000× | 16 December 2025 |
| Limbo Cat | limbo/crash hybrid | 95% | not stated by the maker | 1 November 2020 |
The maker rates CosmoX, GoalX and ChiX as high-volatility games. For ChiX it describes result verification in more detail: it combines a server seed and a player seed and hashes the outcome. CosmoX, per the maker, has a file size of about 0.75 MB.
For Limbo Cat, the maximum win field on the maker's page reads ‘TBA’, meaning ‘to be announced’. So we give no number.
Detailed round breakdowns are in our reviews of CosmoX, GoalX, ChiX and Limbo Cat.
One X line round, from tap to bust
Since the X line titles share a base, one description of the round covers them all. Control differences between the individual games are covered in the reviews.
- Before the start you enter your stake. If the game offers automatic cash-out, you set the multiplier at which the bet pays out by itself.
- Round start – the multiplier begins climbing from 1×, and the rocket, ball or chicken moves with it.
- Decision – while the multiplier rises, you can tap to cash out. The win is your stake times the current value.
- Bust – at a random moment the round ends. If you have not cashed out by then, the stake is lost.
- Verification – after the round, in games with Provably Fair, you can view the data the result came from.
The whole thing takes a few seconds. The bust point is decided before the start, so no amount of watching earlier rounds will give it away. The high volatility the maker lists for these games means longer runs without a win are a normal part of play, not a fault.
A tank, crates and never-ending rounds
Limbo Cat, from 2020, is the oldest Onlyplay game we reviewed and the least typical one. Instead of a rising curve, a tank smashes crates, and each broken crate multiplies the coefficient by 1.2. The game allows two independent bets at once and has an automatic mode for both betting and cash-out.
With an RTP of 95%, it sits two percentage points below the X line. In a fast game that gap is not negligible.
The studio's newer direction is the ‘Infinity Play’ format, with titles Need for X and Quantum X. According to the maker, it grew out of crash mechanics, but rounds run continuously one after another. We have not reviewed these games in detail, yet the principle is worth knowing: the fewer pauses between rounds, the easier it is to lose track of time.
Why Onlyplay crash games are missing from the Instant section
Pay attention here. The instant games section in the Dukat.bet lobby has the address /hu/casino/crash-and-instant and an ‘Instant’ tag. Yet as of 11 October 2026, CosmoX, GoalX, ChiX and Limbo Cat were not in it – the lobby files them under the ‘Slots’ tag.
The simplest route is to search for the game by name or use the Onlyplay studio filter. ChiX is written ‘Chix’ in the lobby.
The demo is another difference. CosmoX and GoalX have no demo in the lobby, so you can only try them with a real stake. If you want to see the controls first without risk, start with a title for which the lobby does offer a demo.
For crash and instant games Dukat.bet runs Instant Bonus – 500% up to 3,000 EUR + 15% Cashback. Since Onlyplay games carry the Slots tag in the lobby, check in that offer's terms how they count towards wagering.
Under one megabyte: Onlyplay and mobile data
A size under 1 MB is a feature the maker highlights for the X line. In practice, the game loads in a moment even on a mobile connection and uses little data.
A smaller file does not solve a signal drop mid-round, though. What happens to a live bet when the connection breaks is something to check in the rules of the specific game. With crash games it makes sense to keep automatic cash-out switched on as a safety net.
If you are choosing between several crash games, a clear side-by-side look at RTP, caps and controls is in our crash game comparison.