Wild Portals is a futuristic slot machine created by Big Time Gaming (BTG). The concept is simple on paper, but very “BTG” in execution: Megaways™ (up to 117,649 ways) and a special symbol, the Wild Portal, capable of increasing multipliers over time. 🎰

Wild Portals at a glance

The heart of the game: the Wild Portals that “erase” a symbol

On each spin, a Wild Portal (a 2×2 block) can appear on reels 2 to 5. When it activates, it reveals a symbol: all its occurrences are removed from the reels, causing falls/cascades and increasing a multiplier attached to the Wild. If a winning combination forms, the payout is applied with the current multiplier.

Free Spins: a Wild Portal guaranteed on every round

The Free Spins mode is the perfect playground for this mechanic: BTG announces that a Wild Portal is guaranteed on every free spin. The multiplier can continue to increase throughout the bonus, and it carries over from the triggering spin to the free spins (which can start the bonus with a bit of momentum already).

In case of retriggering, 3 scatters restart the bonus and add 2 free spins, plus 3 for each scatter beyond the third.

Win Exchange™: exchange a big win for a chance at a bonus

BTG's specificity: Win Exchange™. When you hit a “big” win (according to the game's thresholds), you can choose to exchange it for a chance to trigger the Free Spins. In Wild Portals, BTG specifically describes:

• From 75×: option to exchange 75× the stake for 8 Free Spins.

• Between 25× and 75×: option to exchange the full win to attempt to get 8 Free Spins.

Note: if the Free Spins start via Win Exchange, the Wild Portal's multiplier begins at 1. And Win Exchange is not offered if the Free Spins have already been triggered.

Quick tips for a “clean” session

• Do not overspend on the “swap”: Win Exchange is tempting, but it’s an arbitrage. Keeping a sufficient bankroll remains a priority.

• Accept variance: the game clearly aims for the “big multiplier”. Calm streaks are part of the package.

• Compare the Megaways: if you like the style, also try Wings of Ra MegaWays (different vibe, same idea of a very large number of ways to win).

Why Wild Portals is so popular among BTG fans

Because it condenses what BTG knows how to do: a clean sci-fi theme, readable mechanics (Wild + multiplier), and a very high ceiling (29,580×). If the goal is to “chase” big hits on a Megaways, it is clearly a serious contender.

Need an overview? The page Free Slot Machines allows you to compare other slots in demo mode, without rushing into a single mechanic.