The Vikings Go Berzerk app game is Yggdrasil’s November 2016 sequel to Vikings Go Wild, played in licensed UK casino apps on 5 reels, 4 rows and 25 paylines. Each of its four Vikings has a rage meter that builds as you win; fill one and free spins begin with that Viking as a sticky wild. Here is how it all works on a phone.
Four Viking symbols each have their own rage meter, filled by base-game wins involving that Viking.
A full meter starts free spins and sends that Viking into Berzerk Mode as a sticky wild.
Ragnarök Free Spins, a random upgrade, puts all four Vikings into Berzerk Mode at once.
Published RTP is 96.1% with medium–high volatility; UK stake caps and spin-speed rules apply.
Developer
Yggdrasil
RTP
96.1%
Volatility
Medium–high
Layout
5 reels × 4 rows
Ways to win
25 paylines
Released
November 2016
Vikings Go Berzerk app game: the essentials
Yggdrasil released Vikings Go Berzerk on 23 November 2016 as the follow-up to Vikings Go Wild. The big idea is persistence: progress you make in the base game is stored in meters and spent later in free spins.
There is no separate Vikings Go Berzerk download. The game runs inside a UK-licensed casino app, which supplies the wallet, verification and safer gambling tools while the slot loads from Yggdrasil’s servers. If you play the same game on the casino’s website, you are using the same account and balance.
Reels, paylines and symbols
The game uses five reels of four rows with 25 fixed paylines that pay from left to right. Three or more matching symbols in sequence on a line make a win. The symbol set is small: four Viking characters as the premium symbols and four coin symbols as the lower ones, plus treasure chest bonus symbols.
Symbol group
Count
Role
Viking characters
4
Premium payers; each has its own rage meter
Coins
4
Lower payers
Treasure chests
Regular and golden
Trigger bonus prizes; golden chest lands on reel 5
Exact payouts depend on your stake, so check the paytable in the game menu. The how to read a paytable on mobile guide shows where values are usually listed.
How the rage meters work
Each of the four Vikings has its own rage meter displayed alongside the reels. Base-game wins that involve a particular Viking push that Viking’s meter higher. The meters persist from spin to spin, so a session builds visible progress towards the bonus.
On a phone, the meters are the main thing to keep an eye on. In portrait they share the screen with the 5x4 reels and can look small on compact phones; in landscape they have more room. The game doesn’t require you to do anything with them, but knowing which Viking is close helps you understand what is coming.
Progress meters can make it tempting to keep playing ‘until it fills’. Decide on a budget and stick to it regardless of how full a meter looks; the bonus isn’t owed at any point.
Free spins and Berzerk Mode
When a Viking’s rage meter is full, the game moves into free spins and that Viking enters Berzerk Mode. During the round, Viking symbols face off against a siren. A Berzerk Viking always beats the siren and becomes a sticky wild that stays on the reels until the free spins end, creating extra winning lines on each spin.
Ragnarök Free Spins
Every free spins trigger has a chance of upgrading to Ragnarök Free Spins, a random bonus in which all four Vikings go Berzerk at once. With four characters turning into sticky wilds, this is the version of the round with the most potential.
Yggdrasil’s published description doesn’t give the number of spins awarded, so open the game rules in your app for the exact count. Bonus buy is not available to players in Great Britain.
Treasure chests and the golden chest
A Treasure Chest bonus is available in the game, awarding prizes when chests appear. A Golden Treasure Chest can also land on the fifth reel and offers bigger rewards than the standard chest. Because the golden chest sits on the right-hand edge, it is easy to spot in landscape and slightly tighter in portrait on narrow phones.
Playing Vikings Go Berzerk on a phone, step by step
Open your UK casino app and sign in (Face ID or fingerprint if enabled).
Search ‘Vikings Go Berzerk’; Yggdrasil’s other Viking games may appear too, so check the tile.
Try the demo first if the app offers it, so you can watch the rage meters fill.
Tap the bet control to set your stake per spin, which applies across all 25 lines.
Tap the menu icon and confirm the RTP shown in the rules.
Tap Spin for each round and watch the four meters above the reels.
Vikings Go Berzerk RTP and volatility, with examples
Yggdrasil publishes an RTP of 96.1%, so over the very long run £3.90 of every £100 staked is kept by the casino. Some casinos run lower versions of popular slots; tap the rules page in the game to see the live figure.
Medium–high volatility suits the meter design: steady small wins in the base game, with the bigger moments held back for free spins. At 25p a spin, 400 spins costs £100 in stakes and takes at least 16 minutes and 40 seconds under the UK’s 2.5-second rule. The expected cost is around £3.90, but you should budget as if you could lose the full £100.
UK slot rules you will see in the app
Your stake per spin is capped at £5 if you are 25 or older and £2 if you are 18–24.
There is no autoplay or turbo, and each spin lasts at least 2.5 seconds.
Bonus buy is not offered to players in Great Britain.
Demo play needs a verified account.
Wins smaller than your stake aren’t celebrated with win animations.
Vikings Go Wild is the gentler predecessor; Vikings Go Berzerk adds the rage meters and more risk; NetEnt’s Vikings is the most volatile of the group.
Pros and cons on mobile
Advantages
Visible progress through four rage meters
Sticky wilds in free spins are easy to follow
Simple 25-line structure
Published RTP above 96%
Drawbacks
Meters can encourage longer sessions
Number of free spins not stated in the developer’s summary
Meters are small on compact phones in portrait
No verified max win multiplier published
Where to play Vikings Go Berzerk in a UK app
Search the game in each UKGC-licensed app before you deposit, as libraries vary. 10bet matches a first deposit 100% up to £25 with 10x wagering on slots within 3 days, Ladbrokes gives 50 no-wagering 10p spins a day for 10 days on selected games after £10 of slot play, and Coral gives 100 no-wagering 10p spins on selected games when you bet £10 on slots. 18+, new customers, T&Cs apply.
These UKGC-licensed apps each list thousands of slots; search for Vikings Go Berzerk to check it is there. Spins offers apply to selected games and bonus cash has wagering. 18+, T&Cs apply.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New UK customers only. Select the casino welcome bonus at sign-up and make your first deposit within 7 days. 100% bonus up to £25. Wager the bonus 10x on slots within 3 days. Maximum bonus winnings £1,000. Bonus is not redeemable. Full T&Cs apply. GamCare.org.uk
Read the 10bet reviewLicence: Blue Star Planet Limited, UKGC account 43173. Offer checked 5 October 2026.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Is Vikings Go Berzerk available as an app?
Not on its own. It is a Yggdrasil slot that you play inside a UK-licensed casino app. Download the casino’s app from the App Store or Google Play, sign in and search for the game. Your balance, limits and verification all come from the casino, and the game is the same in the app and on the website. Our real money casino apps page explains how casino apps work in the UK.
How do you trigger free spins in Vikings Go Berzerk?
Free spins start when one of the four Vikings’ rage meters is full. Meters fill as you land base-game wins involving that Viking. When the round begins, that Viking goes Berzerk, beats the siren and becomes a sticky wild for the rest of the round. The exact number of spins is listed in the game rules inside your app. The bonus round entry explains how slot features like this are structured.
What is Ragnarök Free Spins?
It is a random upgrade that can happen whenever free spins trigger. Instead of one Viking going Berzerk, all four do, so four characters become sticky wilds for the round. That gives the best chance of large wins in the game, but it is a random event with no way to force or buy it in Great Britain. For other features that work in a similar way, see mobile slot features explained.
What is the RTP of Vikings Go Berzerk?
Yggdrasil publishes an RTP of 96.1%. That is a long-run figure, so your result in a single session will usually be well above or below it. Some casinos use lower RTP versions of popular games; open the rules page in the game to check the version your app runs. A lower figure means a higher average cost per £100 staked. Our how to find a slot’s RTP in an app guide shows the steps.
Do rage meters carry over between sessions?
The game stores meter progress as you play, but whether it is kept after you close the app or switch device depends on the casino’s set-up and the game version, so check the game rules. Either way, a meter that is close to full doesn’t mean free spins are due, and it is no reason to keep playing beyond your budget. Setting a deposit limit before you start makes that easier.
What is the difference between Vikings Go Wild and Vikings Go Berzerk?
Both are Yggdrasil slots with five reels, four rows and 25 paylines. Vikings Go Wild is the 2015 original with low-to-medium volatility and a free spins round where victorious Vikings become sticky wilds. Vikings Go Berzerk, from 2016, adds individual rage meters for each Viking, Berzerk Mode and a random Ragnarök upgrade, with medium–high volatility. Read our Vikings Go Wild guide for the original.
Can I play Vikings Go Berzerk for free on my phone?
Usually, through the demo mode in a UK casino app, after you have signed in and completed age verification. Since 2019, UK rules haven’t allowed free-to-play slots before those checks. The demo uses pretend credits and is useful for learning how the rage meters build. It doesn’t affect real-money outcomes. If the demo isn’t showing, see casino app demo mode verification.
What is the most I can bet on Vikings Go Berzerk?
In Great Britain the maximum is £5 per spin if you are 25 or older and £2 per spin if you are 18 to 24. The casino applies the cap automatically, so the bet selector won’t go higher. Your stake covers all 25 paylines. The minimum depends on how the casino configures the game and is shown in the bet menu. More detail is in casino app maximum stake.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Get support from GamCare or NHS gambling support, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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