Quick answer
Fire Siege Fortress is a NetEnt slot with 96.01% RTP and medium–high volatility. It has free spins. RTP can vary by casino.
Key specs
- RTP
- 96.01%
- Volatility
- Medium–high
Not published by the provider: max win, grid, bet range, jackpot
Casinos with NetEnt games
- Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonusCarries NetEntPlay at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
- Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonusCarries NetEntPlay at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.
- Lunaro100% up to $300 + 100 Free Spins25x bonusCarries NetEntPlay at Lunaro (opens in new tab)
18+. New customers. Min dep $10. 25x bonus wagering. Max bet $5. 30 days. 100 spins on Gates of Olympus at $0.20. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $10. 25x bonus wagering requirement. Max bet $5 while wagering. Free spins on Gates of Olympus at $0.20 per spin. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
Check Fire Siege Fortress is in the lobby in your country.
Themes:
How to play Fire Siege Fortress (members only)
This game uses its own win-evaluation system. Check the in-game paytable for exactly how combinations are formed.
- Set your stake. Choose your total bet per spin. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
The full Fire Siege Fortress guide: how winnings work, 1 feature and 3 strategy tips
- Your stake plan: a $50 budget → about $0.20 a spin (medium–high volatility)
- What 96.01% RTP costs per $100 wagered: $3.99 on average
- 1 feature explained: free spins
- Stake plans for $20 to $250 budgets
- Strategy tips and a session planner for Fire Siege Fortress
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.01% RTP costs per $100 wagered
What 96.01% RTP means
Expected return = stake × 96.01%
Over $100 of total bets, the long-run average loss is $3.99
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a medium–high volatility game.
Features explained (members only)
1 feature explained: free spins
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Strategy tips (members only)
- Size your stake to the volatility. Medium-to-high volatility means longer gaps between meaningful wins, with most of the return concentrated in features. Use smaller stakes relative to your budget. A simple rule: bring at least 250 spins' worth of budget, so a $50 budget suggests a stake of about $0.20.
2 more tips and a session planner
- Bonus wagering: at 96.01% RTP, clearing $1,000 of wagering costs about $39.90 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets
For medium–high volatility we suggest a budget of at least 250 spins. This is what that means for Fire Siege Fortress.
| Budget | Stake a spin | Bet range | Average cost of 250 spins |
|---|---|---|---|
| $20 | $0.08 | Bet range not published | $0.80 |
| $50 | $0.20 | Bet range not published | $1.99 |
| $100 | $0.40 | Bet range not published | $3.99 |
| $250 | $1 | Bet range not published | $9.97 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
Questions
Frequently asked questions
Who makes Fire Siege Fortress?
Fire Siege Fortress is developed by NetEnt.
What is the RTP of Fire Siege Fortress?
The default RTP of Fire Siege Fortress is 96.01%.
Is Fire Siege Fortress high volatility?
Fire Siege Fortress is rated medium–high volatility. Medium-to-high volatility means longer gaps between meaningful wins, with most of the return concentrated in features.
Can I play Fire Siege Fortress for free?
Not on GambGenius at the moment: we don't list an official NetEnt demo of Fire Siege Fortress.
Does Fire Siege Fortress have a bonus buy?
No bonus buy is listed for Fire Siege Fortress in the sources we checked.
Where can I play Fire Siege Fortress?
Aurivo Casino, Kronos Royale and Lunaro carry NetEnt games. Check Fire Siege Fortress is in the lobby in your country before you sign up. 18+ · New customers · T&Cs apply. Availability varies by country.
Where this data comes from
- vegasslotsonline.com Slot database
Specs come from 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.









