Diamond Rain is an interesting game where you win by landing winning paylines where certain symbols even have multipliers which when used, multiply your win as expected although the real fun is with one of the 3 special features!
The "Diamond Rain Bonus" is triggered by landing bonus symbols on reels 1, 3 and 5 after which you are awarded 20, 25, 30, 40 or 50 Picks! You then pick diamonds for credits and if you find a Boost you advance to the next stage where all credits are multiplied by 2. Finding a second Boost will advance you to the next stage where all prizes are multiplied by 5 and a fourth stage where all credits are multiplied by 10!
The "Diamond Lock Bonus" is triggered by landing 6 or more Diamond symbols and is reminiscent of Lightning Link's "Hold & Spin" bonus where you are awarded 3 spins and for every symbol that lands, your spin count is reset to 3. Blue and Purple Diamonds lock in and award credits. Red Diamonds that lock in award one advance on the Jackpot track and 2x Red Diamonds that lock in award two advances on the Jackpot track! Purple Diamonds also award a prize advance which increases the current value of Blue and Purple Diamonds. If you land all 15 Diamonds, you are awarded the Top Tier Jackpot if betting 200 or 400 credits!
Finally, landing 3 or 4 Blazin' Ice symbols awards credits and landing 5 or more will award Progressives, as you will see, Enjoy!