Spectra vs Starburst XXXtreme
Comparing Spectra (96.40% RTP) against Starburst XXXtreme (96.26% RTP), Spectra carries a +0.14 percentage-point RTP advantage—reducing theoretical house cost by NZ$0.70 per 500 spins at a NZ$1 stake at Here2Win Casino.
Side-by-side technical & math comparison
| Parameter | Spectra | Starburst XXXtreme |
|---|---|---|
| Studio | Thunderkick | NetEnt |
| Published RTP | 96.40% | 96.26% |
| House edge | 3.60% | 3.74% |
| Studio RTP rank | #8 / 56 | #77 / 202 |
| Volatility | Medium | High |
| Hit frequency | — | — |
| Reel grid | 5×3 / 5×4 HTML5 video grid | 5×3 / 5×4 HTML5 video grid |
| Pay structure | Standard studio payline / ways structure | Standard studio payline / ways structure |
| RNG testing labs | iTech Labs, Quinel | eCOGRA, iTech Labs, GLI |
| Studio licences | MGA, UKGC, Spelinspektionen, AGCO (Ontario), ONJN | MGA, UKGC, AGCO (Ontario), Spelinspektionen, DGOJ, ADM |
100, 250 & 500-Spin Bankroll Projection (NZ$1 stake)
| Session volume | Total turnover | Spectra (Return / Cost) | Starburst XXXtreme (Return / Cost) |
|---|---|---|---|
| 100 spins (NZ$1) | NZ$100 | NZ$96.40 (edge NZ$3.60) | NZ$96.26 (edge NZ$3.74) |
| 250 spins (NZ$1) | NZ$250 | NZ$241.00 (edge NZ$9.00) | NZ$240.65 (edge NZ$9.35) |
| 500 spins (NZ$1) | NZ$500 | NZ$482.00 (edge NZ$18.00) | NZ$481.30 (edge NZ$18.70) |
Questions
Which has a higher RTP: Spectra or Starburst XXXtreme?
Spectra leads by +0.14 percentage points (96.40% on Spectra vs 96.26% on Starburst XXXtreme).
How does volatility differ between Spectra and Starburst XXXtreme?
Spectra runs on a Medium math profile, whereas Starburst XXXtreme is rated High.
What is the expected 500-spin house cost at NZ$1 per spin?
Across 500 spins at NZ$1 (NZ$500 total turnover), the theoretical house margin is NZ$18.00 on Spectra compared to NZ$18.70 on Starburst XXXtreme.
Are both Spectra and Starburst XXXtreme RNG-certified and playable at Here2Win Casino?
Yes. Thunderkick (iTech Labs, Quinel) and NetEnt (eCOGRA, iTech Labs, GLI) are independently audited HTML5 studios available at Here2Win Casino.

