Slots with extra free spins
10 games in the pool · feature tag Additional Free Spins · newest first10 games in the pool carry the feature tag Additional Free Spins. The selection spans 8 providers — mainly NetGaming and Redstone — and is sorted with newest releases first.
The numbers in the boxes above are calculated from the same pool as the list below, for each build. If RTP or max win is missing from the provider we write «not specified» instead of filling anything in ourselves.
Games in the selection10out of 54 in the pool
Providers8represented
RTP span90,5–96,4 %10 of 10 games
Highest max win50 000×Colt Lightning Inferno
Newest in the selection05/2026newest first in the list
How games are selected
The criterion, the order and the edge cases
The criterion
The feature list in the game's own rulebook must include "Additional Free Spins. Marketing copy on the casino's game page does not count.
What does not determine
How good the feature is. This page collects games that have the mechanic, not games that use it well — that assessment is in each game's review.
The order
Newest first by release date. Games without a published date end up last.
Colt Lightning Inferno
Play'n GO
RTP 96,2 % · Max 50 000×
Inferno Fortune InstaStrike
Booming Games
RTP 95,5 % · Max 2 150×
Fireball Inferno: Tiki Blast
NetGaming
RTP 94,3 % · Max 1 556×
Inferno Hot 40
Redstone
RTP 96,1 % · Max 1 000×
Inferno Hot 20
Redstone
RTP 96,0 % · Max 1 000×
Hades Inferno 1000
Pragmatic Play
RTP 95,0 % · Max 15 000×
Fireball Inferno Tiki
NetGaming
RTP 94,3 % · Max 1 300×
Inferno Fortunes Rising Rewards King Millions
All For One Studios
RTP 90,5 % · Max 15×
Phoenix Inferno
1x2 Gaming
RTP 95,0 % · Max 7 500×
Lilith's Inferno
AvatarUX Studios
RTP 96,4 % · Max 1 800×
18+ · Terms & conditions apply · stodlinjen.se · Play responsibly
Features that often come with
Mechanics that recur in the same game
How to choose the right inferno-slot: RTP, volatility and max win explained
Three numbers go a long way — if you know where to look and what they actually mean.
Elin Sandgren
Test
Mobile slots: how we test every game before it gets into the guide
Load time, buttons, autospin — our seven-point checklist for mobile games.
Elin Sandgren
Casino
Quick withdrawals: what separates a good casino from a slow one
What operators actually publish about withdrawal times — and what the silence means.
Rasmus Hjortberg
Frequently asked questions
About the Extra free spins feature
What do extra free spins mean in practice?
Can a game have multiple features at the same time?
Does the feature increase the chance of winning?
