Starlight Princess 1000 reviewed honestly: mechanically a twin of Gates of Olympus 1000 - same 6x5 scatter-pays grid, additive multipliers to 1,000x, 15,000x max win and 96.5% RTP. It actually opened Pragmatic's 1000 series, so it is not the reskin. RTP is configurable down to 95%/94%, and the 100x feature buy trims it further. Pick it for the anime theme, not for better value; very high variance.
Gates of Olympus 1000 reviewed honestly: the 1000 is the orb multiplier ceiling, not a better game. Pragmatic doubled orbs to 1,000x and tripled max win to 15,000x, but RTP stays 96.5% (and is reducible) - so you are buying variance, not return. The base game is drier than the original; the 10p min bet helps. Ante Bet doubles bonus odds for +25% stake but burns bankroll faster. For ceiling-chasers with deep bankrolls, not first-timers.
High-volatility 6x5 scatter-pays slot by Pragmatic Play with tumbling wins, multiplier orbs up to 500x, and a 5,000x max win. Mechanically identical to Gates of Olympus, just dressed in anime armor.