Coba Slot Free Play
Coba

- Win up to 25000x your bet
- 95% RTP that is below industry average of 96%
Theme of The Game
If you appreciate a bit of history in your games, or if you simply enjoy a well-designed slot machine that is also capable of paying very well, then I think you will find Coba a good option. Of Mayan inspiration, this is not the first slot to feature graphics of this type, but it does enough things differently to make itself interesting anyway. You’re going to find a huge game area, with 7 rows of 6 or 7 symbols, arranged in a way which makes gravity drops possible.
The actual symbols are mostly coin-shaped and they’re made out of stone, gold, or gemstones. Some of them show idols and wild creatures, while others are gems colored differently, or even gold coins with skulls on them.

I am playing Coba Video Slot Machine screenshot
Developer
You’re getting this slot machine from ELK Studios, a developer that’s in the middle of the pack, if we’re looking at all the companies which create games for online casinos. The games themselves are good, but there aren’t a lot of them available. Lately, they seem to have settled on a rhythm of about one new slot per month.
How To Play It
For ELK Studios, the betting range seems to be standard, and it uses 100 coins. The denomination changes, allowing for total bets from $0.20 to $100.
As I previously mentioned, it’s a slot machine with 7 rows of symbols, and you will find either 6 or 7 symbols on each one, alternating between sizes in each case (4 rows of 7 symbols and 3 rows of 6 symbols). You create clusters of 5 to 15+ matching symbols, in order to get a win.
Special Features
After an initial creation of a win, follows the Avalanche, which is used to remove winning symbols. The new symbols that drop down will hopefully create their own wins, making additional Avalanches possible.
A wild symbol can help you out here, contributing to whatever cluster is formed next to its location. It acts as the usual replacement, and it works only with regular symbols. Multipliers can be applied by these wilds, and they’re going to work together if several are present (three multiplier wilds of 2x will give the win a total boost of 8x by multiplying each other).
Additional interesting mechanics are also included, taking the form of Snakes that are released as walking clusters. They move around after Avalanches, and they survive if they manage to eat symbols of the same color, which allows them to grow. If they go across another Snake, they leave a 2x multiplier wild in that position (doubling each time this happens again in that spot).
As you win via snakes, you will get points in the meter on the right side, going up in level each time you collect a certain number of points. The higher your level, the more snakes will enter the game area (up to 6 snakes if you reach level 4).
Maximum Payouts
Coba’s rewards are very good, and its players can look forward to top jackpots of up to 25,000x the stake. It’s not unusual for a top jackpot, but if you look only at medium volatility slots, then it’s extremely rare to get paid so well.
A downside is the RTP of Coba, limited to 95%, while older ELK slots paid 96%.
Summary
Coba is a typical slot machine for ELK Studios, with modern graphics and a complex mix of special features and mechanics that you can explore. I love the big top jackpot since the volatility is medium, but the 95% RTP is a big downside.