Kara Basan Slot Demo by Oz Studios
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Written by Secod on 09-11-2026
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Kara Basan by Oz Studios Slot Overview
Kara Basan is a horror-themed 5-reel slot with a haunted bedroom setting, eerie creature symbols, and a tense atmosphere. The dark visual style is matched by a staged bonus structure, where each Darkness that lands moves the free spins one step up a seven-stage multiplier ladder.
Its standout mechanic is the free spins ladder, where Darkness advances stages and changes the payout flow, while bonus buy options add direct access. With 10,000x maximum win potential and high volatility, it is worth trying the free demo on BonusTiime.

Kara Basan Slot Specifications
5 reels and 3 rows create a fixed 20-line setup in Kara Basan. The house edge sits at 3.80%, keeping the Oz Studios slot neatly structured for online slot gameplay.
RTP (Return to Player)
96.20% RTP supports solid long-term returns. The house edge sits at 3.80%.
Volatility
High volatility means bigger swings, so bankroll control matters during longer sessions.
Max Win
The max win is 10,000x the bet, so a €1 spin caps at €10,000.
Kara Basan Slot Features

Bonus Buy, free spins, and Stay Awake shape Kara Basan’s core gameplay, while Darkness and the staged ladder add a progression system that keeps the bonus round changing as it unfolds.
Stay Awake
Stay Awake plays every spin for 1.25x the base bet and stays on until you switch it off. It changes the pace by making Curse Bundles land more often, so They Are Coming starts about once every 111 spins instead of once every 221. The base game stays leaner, with more of the return sitting in the bonus.
They Are Coming
They Are Coming starts when 3, 4 or 5 Curse Bundles land in a base game or Stay Awake spin. It begins with 10 free spins from stage 0 (x1) and can grow as the ladder advances. The round uses the current stage multiplier on every line win, and the free spins are played at the bet of the round that started them.
- x1: The Door Opens, stage 0, where the ladder starts.
- x2: Hortlak, raises the multiplier for later free spins.
- x3: Gulyabani, continues the staged climb.
- x5: Marid, increases the reward level further.
- x10: Karakoncolos, pushes the ladder into stronger territory.
- x25: All Four, brings the feature close to its peak.
- x50: Possessed, the top stage, and it adds 3 free spins.
Curse Bundle
The Curse Bundle acts as the scatter symbol. It never forms a line win and it ends a line, and at most one lands on each reel. When 3, 4 or 5 land anywhere in a base game or Stay Awake spin, they trigger They Are Coming. In free spins, 3 or more add 5 free spins, never beyond 30 in total, and the 3 spins for the top stage still come on top, so a night holds at most 33.
Nazar Wild
The Nazar Wild substitutes for every symbol except Curse Bundle and Darkness. It helps complete line wins and can stand in for missing symbols across the grid. Five Nazars on a line pay 50x the base bet, while shorter runs pay as the symbol they complete. The Wild carries no multiplier of its own.
Darkness
Darkness appears only in the free spins. When at least one lands, the light goes out after that spin’s wins, then the next spirit steps in and moves the ladder up one stage, one stage per spin however many Darkness land. The new multiplier starts from the next free spin, and the ladder never goes down once it climbs. With only one free spin left, Darkness does not appear unless the ladder is at stage 5, and the ladder resets when the round ends, with nothing carried over.
Bonus Buy
The buy menu holds three paid modes: one that stays on for x1.25 the bet on every spin, and two one-time buys that open They Are Coming directly.
- Stay Awake: x1.25 the bet per spin; it stays on until you switch it off and makes Curse Bundles land more often, so They Are Coming starts about once every 111 spins instead of once every 221.
- The Curse: x100 the bet; starts They Are Coming with 10 free spins from stage 0 (x1), and the night opens with a spin that lands 3 Curse Bundles.
- Possession: x340 the bet; starts They Are Coming with 10 free spins from stage 3 (x5), with Hortlak, Gulyabani and Marid already in the room.

Where to Play Kara Basan by Oz Studios
Kara Basan is a Stake exclusive and can only be played on Stake.com through the Stake Engine: Stake is currently the only casino offering Oz Studios content for this title.
Only on StakeStake: play Kara Basan with €30 free for a €20 deposit
8.9/10 BonusTiime score
- BonusTiime exclusive€30 free for a €20 deposit
- Wageringx1 on the €30
- Min deposit€20
- AvailabilityStake only
- Game studios672
Kara Basan Slot Review
Kara Basan builds its identity around a haunted bedroom, a horror warning screen, and the staged bonus ladder that gives the whole game a restless edge. The split between the base room and the eerie free spins does most of the visual work, while Darkness keeps the atmosphere tied to the mechanics.
The gameplay stands out because the bonus does not just trigger and repeat. It escalates through x1 to x50, and that progression gives the free spins real structure. High volatility and the 10,000x ceiling suit the design, but the base game can feel tight unless a feature lands early.
Kara Basan builds its bonus gameplay around They Are Coming and its ladder, with the current stage multiplier applying to every line win in the free spins. The Stay Awake mode adds another layer, yet the game still leans heavily on bonus momentum.
Ratings and reviews come from registered BonusTiime members (18+). Every written review is checked before it appears. Reviews are accepted in English only. Community guidelines
Kara Basan Slot FAQ
How Does The Bonus Trigger In Kara Basan?
Kara Basan starts They Are Coming when 3, 4 or 5 Curse Bundles land anywhere in a base game spin or Stay Awake spin. That trigger awards 10 free spins from stage 0 with the x1 ladder. In free spins, 3 or more Curse Bundles add 5 more spins.
What Do The Buy Options Cost And Give?
The buy menu shows Stay Awake at x1.25 the bet per spin, The Curse at x100 the bet and Possession at x340 the bet. Stay Awake stays on until you switch it off and makes Curse Bundles land more often. The Curse starts They Are Coming with 10 free spins from stage 0 (x1). Possession starts the same feature with 10 free spins from stage 3 (x5), so the ladder opens higher.
What Is The Maximum Win In Kara Basan?
The maximum win is 10,000x the bet. That applies in every mode, including the base game, Stay Awake, and feature buys. If a round reaches the cap, the round ends at once and any remaining free spins are not played.
Is There A Free Demo Of Kara Basan?
Yes, Kara Basan is playable for free on this BonusTiime page. You do not need a deposit or an account to try the demo. The game is also exclusive to Stake on real money sites, so this free version gives easy access for testing the mechanics first.
How Does The Signature Free Spins Ladder Work?
The signature mechanic is the free spins ladder. It starts at x1 and moves through The Door Opens, Hortlak, Gulyabani, Marid, Karakoncolos, All Four, and Possessed. Darker stages apply from the next spin after Darkness lands. The ladder never goes down, and stage six adds 3 spins.
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Before specialising in SEO and editorial strategy, Secod spent thousands of hours streaming and testing slot games extensively. This high-volume gameplay experience allows him to analyse volatility patterns, bonus frequency, feature depth and provider mechanics with accuracy. Every slot review he produces reflects genuine testing experience rather than theoretical summaries.
Quick Infos
- RTP96.2%
- VolatilityHigh
- Max Win10,000x
- ProviderOz Studios
- Min / Max Bet€0.10 – €1,000
- Grid5×3
- Paylines20
- House Edge3.8%
- Release Date09-11-2026
- Free SpinsYes
- AutoplayYes
- Gamble FeatureNo
- Available on MobileYes
- Bonus BuyYes
- FeaturesScatter Symbol, Wild Symbol, Multiplier, Bonus Buy, High Volatility
- ThemesHorror, Halloween, Mythology
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