Play Professor Archibald for Free

While the design may be something special, the layout is conventional, with 20 paylines running from the left side, across which players will need 3 or more of the same symbol to get a winning combination. Free Professor Archibald and the Catacombs of Easter Island video slots are provided by Air Dice, and anyone who wants to play for real cash will find that the minimum stake is only 0.20, while the high limit is set at 40.00 per spin.

Players will recognise the symbols from the opening animation and we have a skull, the statues on a beach and a shot of Professor Archibald in his rickety plane each being valued at 10x, 25x and 100x the bet per line when landing on 3, 4, or 5 reels across any payline.

A swinging axe trap is valued at 20x, 40x and 250x, while a clown fish, entrance to the Catacombs, the Professor on the beach, and the unfortunate pelican are worth progressively more. The best awards are paid by Professor Archibald grabbing the gold icon, with players claiming wins equal to 100x, 250x and 3,000x their line stake.

A big gold W is the wild symbol, which only appears in the middle section, but becomes and expanding wild symbol that will fill the reel, acting as any other if it’s then possible to complete a win-line. If it can’t complete a line, then it won’t expand, while there’s no value attached to this symbol on its own, and it won’t substitute for the scatter symbol.

The scatter can land in any places, triggering payouts that are multiples of the total stake and then awarding a free spins bonus game. If 3 scatters appear, just 1x the bet is returned, followed by 8 free spins, while 4 scatters are worth 10x, plus 15 bonus games, and the top prize of 50x the bet, plus 25 bonus spins is awarded by 5 or more scatter symbols.

Those free spins are played out with a different set of symbols that includes crystal skulls, jewelled beetles, golden statues and colourful gemstones. A new shiny coin wild symbol is in play, turning up on reels 2, 3, 4 and 5, while a special scatter symbol can retrigger the free spins if it’s in any 3 or more places in a single game. The new spins will commence as soon as the current round has finished.

Any win can be gambled up to 3 times, in a fun sequence that sees the pelican picking either a red or blue fish out of the water. If players have correctly guessed what colour fish he’s going to eat, the value of the triggering bet is doubled, and gamblers can either collect, or try to double up again, but a wrong pick ends the round and loses the initial bet.

It’s an optional game and while these rounds are just as likely to end in a loss, it’s such a well-designed gamble feature that it could be worth risking a small win, just to see it play out.

An enjoyable adventure theme, stunning graphics and animation, plus some pretty impressive bonus features should make a trip to Easter Island with Professor Archibald top of anyone’s agenda. There’s usually some downsides to any online slot machine, but this is one of those games where we struggle to find anything to complain about.

Some people like to see playing card icon making up the lower-value win-lines, while it’s not possible to activate just a few paylines for tiny wagers, but this aside, the Professor Archibald and the Catacombs of Easter Island video slot is a top quality, mobile-optimised game that we highly recommend you try out.