Temple Stacks

Temple Stacks is an Aztec-themed video slot from Yggdrasil Gaming that introduced the studio's Splitz mechanic, a system that expands the reels well beyond a standard grid to generate a huge range of ways to win.

Theme and gameplay feel

Set in and around a hidden jungle temple, the presentation is a little more restrained than some of Yggdrasil's flashier releases, though it's still a good-looking game, especially in landscape orientation on mobile, where the reels sit framed by exotic jungle scenery. The core structure starts at a 5-reel, 3-row grid offering 243 ways to win, formed whenever three or more matching symbols land on adjacent reels from left to right. The Splitz engine then expands the grid up to 12 symbols per reel at full stretch, pushing the maximum number of ways to win all the way up to 248,832 — notably, there's no cascading mechanic here, which sets it apart from many similarly styled slots.

What the RTP means for the player

Temple Stacks carries a return to player of 96.1%, a solid, above-average figure for the current market. Over a long run of spins, that setting gives players a fair, competitive return relative to the stake wagered.

Volatility explained

Volatility sits in a medium-to-high range, striking a reasonable balance between regular activity and the bigger potential unlocked once the Splitz grid expands. The lower-value symbols use Aztec and Mayan-style iconography, while five coloured gem symbols make up the premium end of the paytable.

Max win potential and stakes

The maximum win available is a substantial 25,000x the stake, among the bigger ceilings you'll find in this style of expanding-grid slot. Stakes run from 10p/c up to £/€100 per spin, and players can set up an unlimited number of auto spins if they prefer a hands-off session.

Verdict

Temple Stacks pairs a genuinely inventive expanding-ways mechanic with a strong RTP and a huge top prize, making it a standout entry in Yggdrasil's catalogue. If big, shifting-grid slots with serious win potential sound appealing, it's worth trying the free demo at johnessyslots before playing for real money.