A respin is an extra spin with no new stake, usually with part of the grid locked. It can be a random gift after a win, the move of a special symbol, or the basis of an entire bonus. The variety is wide, and it is by those details that respin slots differ from one another.
In Quickspin’s Dragon Shrine (18 October 2016) a stack of dragons on the first reel starts Dragon’s Stack Respin, in which dragons and Wilds lock in place. By the review’s reckoning, of the 96.55% RTP, 30.34 points come from this respin, almost a third. The modest 871x cap keeps the game easy to read. Yggdrasil Gaming’s Penguin City (24 July 2018) builds its Penguin Escape Mode on a sticky Wild and a chain of respins, with low volatility and 96.2% RTP.
The respin as a bonus of its own
In 3 Oaks Gaming’s Sun of Egypt 3 (1 March 2022), Hold & Win starts when six bonus symbols are on screen. They lock, every other position spins again, and a counter of three respins resets to three each time a new sun lands. It ends when respins run out or all 15 positions are full. Return sits at 95.61% and the ceiling at 10,000x.
PG Soft’s Fortune Tiger (20 March 2022) has a tiny 3×3 grid with 5 lines, and the whole game rests on random sticky respins and a 10x multiplier for an all-winning screen. 2,500x is the ceiling, with 96.81% RTP behind it. Big Time Gaming’s Apollo Pays (23 February 2022) turns the respin into a chain: while two or more symbols improve, another follows, and the win is paid only after the chain breaks.
The walking Wild in Play’n GO’s Raging Rex (10 January 2019) fills a reel, marches toward the first one and leaves respins on its way. In Push Gaming’s Fat Santa (27 November 2018) the sleigh brings pies and a respin, while the bonus starts separately. Play’n GO’s Charlie Chance in Hell to Pay (21 May 2020) a respin can carry a 25x multiplier yet guarantees no win.
The practical view: respins smooth a game out when they happen often and pay little, and make it nervy when all the weight sits in one bonus. Games built on locking and respinning are laid out in the Hold and Win explainer.