Five reels, three rows and one clear bonus state
Urartu uses five reels, three rows and 10 paylines. The base structure is traditional, with a Wild that substitutes for regular paying symbols while the Scatter opens the main feature. Endorphina's rules separate those roles clearly: the Wild does not replace the Scatter.
That simple division makes the game easy to read. Ordinary line wins use the fixed 10-line layout. Wilds can help complete those combinations. Scatter symbols have a different purpose because collecting enough of them moves the game into Free Games.
The artwork draws on the ancient kingdom of Urartu, with royal figures, ornamental clothing and stone-carved animals among the symbols. The theme gives the reels a specific setting, but the rules remain compact enough that the feature flow can be understood without a long list of side mechanics.
Endorphina also states that when one or more Wild symbols take part in a winning combination, that win is doubled. That gives the Wild a second function beyond substitution. It can help complete a line, and its presence can also change the value of the winning combination before the game ever reaches Free Games.
Three Scatters open 15 Free Games
Landing three or more Scatter symbols triggers 15 Free Games. During the feature, all wins are multiplied by 3x.
That changes the value rule without changing the reel layout. The same five reels, three rows and 10 paylines remain in place, but a qualifying win in Free Games is evaluated under the 3x feature multiplier.
This is the main shift between base game and bonus. Urartu does not need an expanding grid, a collection meter or a changing ways count. The feature keeps the familiar structure and applies a stronger rule to wins for the duration of the Free Games round.
Retriggers extend the same 3x state
Free Games can be won again during the feature. A retrigger therefore extends the time spent under the same 3x multiplier rule instead of moving the game into a different bonus stage.
That is an important distinction for how the feature feels. Some slots use retriggers to unlock a new mechanic or upgrade a meter. Urartu uses them more directly: extra Free Games mean more spins under the established 3x condition.
The result is a feature with very little rule-switching. Once the bonus has started, you can focus on the regular line structure and the fixed multiplier rather than learning another set of symbol behaviours halfway through the round. That consistency also makes retriggers immediately legible because they extend an existing state instead of introducing a new one.
The Wild and Scatter should be kept separate
The Wild substitutes for paying symbols but not for the Scatter. The Scatter is responsible for the Free Games trigger. This sounds like a small rules detail, yet it is useful when reading the reels. A Wild can support an ordinary line combination, while a Scatter remains the dedicated route into the bonus. Treating them as two different jobs avoids the common mistake of assuming that every special symbol can stand in for every other one.
Endorphina also lists Risk Game and Bonus Pop among the game's features. Those options sit beside the core reel-and-Free-Games structure, but the heart of Urartu is still the 10-line base and the retriggerable 15-spin feature with its 3x multiplier. That gives Urartu a clear two-state structure: conventional line wins in the base game, then a Free Games phase where the same basic reel format is paired with a fixed win multiplier.
Urartu is an Endorphina slot using five reels, three rows and 10 paylines. The Wild substitutes for regular symbols but not for the Scatter, which is responsible for opening the main bonus feature.
Use free play to learn the state change
Urartu is well suited to a short mechanics-focused demo because the change from base game to feature is so clean. Start with the 10-line layout and identify what the Wild does in an ordinary win. Then follow the Scatter trigger into Free Games and confirm that the reel structure stays the same while the multiplier rule changes.
Joker Ra: Sunrise is a useful Endorphina comparison. It also starts from a conventional fixed-line reel game, but its Scatter feature works differently: three Scatters open eight Free Games and the symbol pool is reduced during the bonus. Joker Ra also has a separate Bonus-sun route into the Sunrise Bonus Game.
Urartu is more concentrated. Its feature depth comes from one clear transition into a retriggerable 15-spin state with a fixed 3x win multiplier. That restraint is the game's strongest mechanical characteristic.
