Developer 
Reels 
Features Rainbow Charm by Casino Technology is a five-reel slot with medium-high volatility and a top award of 40,000. The game lists no fixed winning lines and includes scatter wins and multipliers among its main features. Payout figures shown for the title vary across versions, with a stated range in the low-to-mid 90% area and some lower returns listed in the game data.
The slot is built around three types of game, giving it a layered structure rather than a standard single-mode format. For players using the demo version, this makes it possible to play for free and study the bonus mechanics before playing for real money. The review launch area is suitable for testing how scatter wins and multiplier features behave in practice.
Rainbow Charm is presented with English, Bulgarian, Russian, Romanian and Spanish language support. Technical notes in the data mention SAS 6.02 interop approval and hardware platform references to Tough Fighter and Tough Rider. The available feature set focuses on the bonus structure and game variation rather than a long list of symbols.
