Solar King launched on September 24, 2020 and is Playson's 3rd Flaming Frames slot, sitting chronologically between Solar Temple (March 2020) and Solar Queen Megaways (October 2021). It's the natural evolution of the signature "Flaming Frames" mechanic — Sun positions that turn into sticky frames carrying progressive multipliers.
On the technical side: RTP 95.45%, 5x4 / 20-payline format, max win 2,221x (double Solar Temple's), high volatility, 12.3% hit frequency. An Egyptian premium universe (Pharaoh, Ra, Bastet). This review compares the Solar trilogy, breaks down the Flaming Frames + Free Spins mechanic, and lists the best casinos to play it at in 2026.
TL;DR — Solar King in 4 points
- Playson slot, Sept 2020, 3rd Flaming Frames title, Egyptian theme. Format 5x4 / 20 paylines. RTP 95.45%.
- High volatility, max win 2,221x (1,221x above Solar Temple).
- Flaming Frames 10-spin cycles + progressive multiplier +1 per sun landing in an existing frame + frames turn into wilds at cycle end + 10-spin Free Spins (3 scatters) with sticky sun wilds.
- No bonus buy. A dry 12.3% hit frequency.
The Solar trilogy — Playson comparison
| Slot | Release | Format | Max Win | Signature mechanic |
|---|---|---|---|---|
| Solar Temple | March 2020 | 5x4, 20 paylines | 1,000x | Original Flaming Frames |
| Solar King | Sept 2020 | 5x4, 20 paylines | 2,221x | Flaming Frames evolution |
| Solar Queen Megaways | Oct 2021 | 6-reel Megaways | 3,874x | Flaming Frames + Megaways |
Verdict: Solar King is the evolutionary middle ground — a classic 5x4 format (like Solar Temple) with a doubled max win. If you want the Megaways format, Solar Queen Megaways is the stronger option on max win (3,874x).
The Solar King mechanic in detail
Flaming Frames — the central signature
This is the main differentiator across Playson's Solar line. A mechanic in 4 steps:
- Permanent 10-spin cycles run on the base game (a visible counter at the bottom)
- When a Sun symbol lands, its position becomes a sticky Flaming Frame (stays active for the cycle's 10 spins)
- If a new Sun lands inside an existing frame, the cycle's global multiplier increases by +1
- End of cycle: all frames simultaneously transform into wilds with cumulative multipliers applied on the active paylines
It's this cycle-after-cycle accumulation that defines the Solar signature — the longer you play, the more multipliers and frames pile up. The slot rewards stretched-out sessions.
5x4 / 20 paylines format — a solid base
20 fixed paylines on a 5×4 grid (4 rows vs. the standard 3). More potential lines, clean visual reading. Low symbols: 9, 10, J, Q, K, A in hieroglyphic style. High symbols: Bastet, Ra, and the Pharaoh (high pay of 25x for 5 in a row). Bird of Ra scatter for the FS.
12.3% hit frequency — the Achilles' heel
This is low for Playson's portfolio:
| Playson slot | Hit Frequency |
|---|---|
| Vikings Fortune Hold and Win | 44.25% |
| Pearl Beauty Hold and Win | 34.72% |
| Buffalo Power 2 H&W | 27.16% |
| Solar King | 12.3% |
| Hot Coins H&W | 10.64% |
12.3% = roughly 1 hit every 8 spins. The consequence: dry base-game sessions, followed by potential explosions when a Flaming Frames cycle wraps up with stacked multipliers. Not a slot for players chasing steady, regular wins.
Free Spins — Egyptian sticky wilds
Trigger: 3 Bird of Ra scatters → 10 Free Spins.
The FS mechanic:
- Sun symbols become sticky wilds (stay in place for all remaining FS)
- Flaming Frames from the base-game cycle carry over into the FS
- No retrigger
- No additional multiplier — direct wins on paylines with sticky wilds
Tested FS sessions: average payout of 40-100x stake per trigger. With a well-loaded Flaming Frames cycle right before the FS, up to 200-300x is possible.
95.45% RTP — mid-portfolio
| Playson slot | RTP |
|---|---|
| Sunny Fruits Hold and Win | 95.99% |
| Super Sunny Fruits | 95.70% |
| Royal Coins 2 H&W | 95.64% |
| Royal Joker H&W | 95.62% |
| Hot Coins H&W | 95.61% |
| Solar King | 95.45% |
| Buffalo Power 2 H&W | 95.53% |
| Vikings Fortune H&W | 95.2% |
| Wolf Power H&W | 95.04% |
Solar King sits squarely in the middle of the portfolio. Not optimal for pure EV, but consistent with its high volatility and 2,221x max potential.
Solar King strategy — exploiting the cycle
At a 12.3% hit rate and high volatility, here are our recommendations:
- Flat stake of €0.40-€0.80 across 200-300 spins (the high variance calls for a slightly bigger stake)
- Patience with the Flaming Frames cycle: do NOT leave before a 10-spin cycle completes (the wilds activate at the end)
- If 2-3 frames stack up in the first spins of the cycle, don't change your stake
- Free Spins target: roughly 1 trigger per 100-150 spins
- Bankroll target: 100-150x your stake to absorb the 12.3% dry spells
Top 5 casinos to play Solar King in 2026
🟢 1. SpinAura — #1 pick, 9.2/10
Full Playson catalog, confirmed 95.45% RTP. 100% bonus up to €15,000 + 24h withdrawals.
💎 2. BetRiviera — 8-minute withdrawals
Confirmed Playson catalog, with instant 8-minute withdrawals — a market record.
🐝 3. HunnyPlay — Crypto-native Playson
100% crypto-friendly, full Playson catalog with original 95.45% versions.
🔵 4. BigClash — Hybrid casino + sportsbook
A hybrid casino + sportsbook platform, Playson present.
🔴 5. Betti — 150% bonus + 150 FS
150% bonus up to €1,500 + 150 free spins, an accessible wager to clear playing Solar King at a moderate stake.
FAQ — Solar King
What is Solar King's RTP?
Official RTP: 95.45%. Right in the middle of Playson's portfolio. Consistent with the Flaming Frames profile across the Solar line.
Solar Temple, Solar King, or Solar Queen Megaways?
Solar Temple (March 2020): the original 5x4, max 1,000x. For Flaming Frames purists. Solar King (Sept 2020): the evolutionary middle ground, 5x4, max 2,221x — the sweet spot of classic format + decent potential. Solar Queen Megaways (Oct 2021): 6-reel Megaways, max 3,874x. For those chasing the top max win.
What's the maximum win on Solar King?
2,221x your stake per session. At the €0.20 minimum stake, the theoretical max win = €444.20. At the €100 max stake, the max win = €222,100. Double Solar Temple's, but behind Buffalo Power 2 (10,468x) or Royal Joker (21,150x).
Is Solar King available at real-money casinos?
Yes, at most of the top-rated crypto/anonymous casinos that carry Playson: SpinAura, BetRiviera, HunnyPlay, BigClash, Betti, MonacoJack.
Is a bonus buy available?
No. Solar King has no bonus buy — Free Spins only trigger naturally with 3 scatters. Consistent with Playson's policy across the Flaming Frames line.
How exactly does the multiplier work?
During a 10-spin cycle, every time a Sun lands inside a Flaming Frame that already exists (not a new frame), the cycle's global multiplier increases by +1. At the end of the cycle, this multiplier applies to the wins from the generated wilds. Example: 3 Suns landing in existing frames = a x3 multiplier on the final wins.
What's the best strategy?
Flat stake of €0.40-€0.80 across 200-300 spins. The slot rewards respecting the cycles — never leave before a 10-spin cycle wraps up, that's when the wilds activate. If you hit 0 Free Spins after 250 spins, switch slots. Patience pays off: a full cycle combined with the FS can generate 300-500x your stake.
How much bankroll do I need to play Solar King properly?
A minimum of 100x your stake to absorb the high variance. At €0.20, that's a minimum bankroll of €20. At €1, a minimum of €100. The dry 12.3% hit frequency calls for more bankroll than Playson's other Hold & Win titles.
Go further
- ☀️ Solar Queen Megaways Review — The Megaways version, max 3,874x
- 🏛️ Legend of Cleopatra Megaways Review — Playson's other Egyptian slot
- 🐃 Buffalo Power 2 Hold and Win Review — Playson's #2 max win
- 💙 Full SpinAura review — our top pick
- 💡 What is casino RTP — how to evaluate a slot before playing
🎰 Solar King slot page for the complete technical sheet.
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