Infinity reels
Infinity reels is a slot mechanic, developed by the studio ReelPlay, in which every winning spin adds a new reel to the right of the grid, and the game keeps adding reels for as long as each new one extends or improves a win. Most games built on it start on a compact layout, often three reels four symbols high. When a fresh reel adds nothing, the sequence ends, wins are paid and the grid returns to its starting width for the next spin.
How an Infinity Reels sequence runs
The sequence lives inside a single paid spin, so the extra reels cost nothing beyond the stake already placed. After the starting reels stop, wins are checked from the left; if there is one, a new reel spins in on the right and the game asks whether it continues any winning combination.
If it does, another reel follows, and the chain carries on until a new reel fails to add anything.
Many titles attach a multiplier to this chain, and the details vary from game to game rather than following one standard. In Thor Infinity Reels, a ReelPlay game released by Yggdrasil, the multiplier starts at x1 and rises by one for every reel added, so a sequence that adds three reels and finishes on six in all pays at x4. Some games also hold a fixed prize for a long chain, which in Thor arrives when twelve reels have been added to the starting three. Because ways are counted by multiplying the symbols on each reel, every added reel multiplies the ways figure as well, which is why the number on screen can climb so quickly.
What the name does not promise
The word infinity describes the structure, not a likely outcome. There is no fixed cap on reels in the basic form, yet every step still needs a fresh qualifying result from the random number generator, and a long run earlier in the session makes the next one no more likely.
A slot is never due.
The mechanic is often confused with Megaways, but the two work differently: Megaways changes how many symbols sit on each reel on every spin, whereas Infinity Reels adds whole reels only after a win. The return to player of any title on this mechanic depends on the game and the version an operator runs, so the figure in that game’s own help screen is the one that counts.
