Halocline Horizons

The world

A narrow lantern beam crosses the shimmering boundary between dark saltwater and a milky underground current. Explore its original social-slot world with free fictional Play Credits and a feature built around brine vault.

Brine Vault

Separate salinity layers lock luminous samples in place. Three recovery passes reveal new samples before the capsule opens.

How to play

Select a Play Credit amount and press Spin, or use Space while the game is focused. Matching symbols from the left along an active line award the amount shown in the game rules. Wild symbols substitute for ordinary symbols. Features use the recorded round and never create a second charge. Quick Spin changes timing; reduced effects keeps every result readable.

Before you begin

All play is free entertainment for UK adults aged 18 and over. Credits are fictional and cannot be purchased, transferred or exchanged. There are no cash or real-world prizes. A preview is illustrative and does not affect your balance.

Symbol awards

Values are multiples of your total Play Credit amount per spin. All 20 lines are active. Match at least three symbols from the left; each line pays its longest match once. Wilds substitute for ordinary symbols. Feature awards are shown separately in the round.

Symbol	3 matches	4 matches	5 matches
a narrow-beam diving lantern	2.0×	4.0×	8.2×
a milky halocline crystal	1.0×	2.5×	4.0×
a white cave shrimp	0.5×	2.0×	3.0×
a sculpted salt crystal	0.5×	1.0×	2.5×
A	0.25×	0.5×	1.0×
K	0.25×	0.5×	1.0×
Q	1.0×	1.5×	2.0×
J	0.5×	1.0×	1.5×