Spinative docs · Features catalogue

Features catalogue

Features

The Features tab is the catalogue of slot mechanics you can turn on for the project. Toggle a feature and three things happen:

  1. The Flow workspace gains its screens (in-round, intro, outro, variant overlays).
  2. The Art workspace exposes its feat-slots — new generable asset targets specific to the mechanic.
  3. The GDD picks it up: the feature appears in the spec with its configured values.

This chapter is the reference for everything in the catalogue. Use it as a lookup when you're not sure which mechanic does what, what it generates, or what its configuration knobs are.

The canonical list lives in FDEFS in public/editor/editor.js; the feat-slots live in FEATURE_SLOT_SPECS in lib/ai/promptBuilder.ts.

How toggling a feature reshapes the project

Toggling on a feature is irreversible only in the sense that it *adds* state. Toggle it off and the feature's screens, configured values and feat-slots all clear out. Generated assets for feat-slots remain in the asset pack (you've already paid for them) but their tiles disappear from the Art grid until the feature comes back on.

A few features ship on by default:

  • Free Spins — on. The single most common mechanic in slots.
  • Win Sequence — on. Powers the Big Win / Mega Win / Epic Win pop-ups. You almost certainly want this.

Everything else is off by default.

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Bonus Rounds

Free Spins

Scatter-triggered free spins with multipliers and retriggers. The most common bonus in slot games.

  • Screens added — freespin (in-round), freespin_intro, freespin_outro.
  • Feat-slots — freespins.intro_banner, freespins.bg, freespins.spin_counter_frame, freespins.multiplier_badge, freespins.retrigger_celebration, freespins.outro_banner.
  • Configuration - Spins Awarded — number, 1–100 (default 10) - Trigger Symbols — text, e.g. "3 Scatters" - Multiplier — None / 2× / 3× / 5× / Progressive - Retrigger — Yes same count / Yes extra spins / No retrigger

Hold & Spin (Lock & Win)

Coin symbols lock in place; the grid respins until no new coin lands. Each coin carries a credit value collected at the end.

  • Screens added — holdnspin (in-round), holdnspin_intro, holdnspin_outro.
  • Feat-slots — holdnspin.intro_banner, holdnspin.bg, holdnspin.coin_symbol_locked, holdnspin.coin_symbol_glowing, holdnspin.respin_counter_frame, holdnspin.jackpot_grand, holdnspin.jackpot_major, holdnspin.jackpot_minor, holdnspin.jackpot_mini, holdnspin.outro_banner.

Bonus Pick Game

A pick-and-reveal or matching mini-game triggered by bonus symbols.

  • Screens added — bonus_pick, bonus_pick_intro, bonus_pick_outro.
  • Feat-slots — bonuspick.bg, bonuspick.header, bonuspick.tile_closed, bonuspick.tile_revealed, bonuspick.prize_coin, bonuspick.prize_multiplier, bonuspick.prize_freespin, bonuspick.prize_jackpot, bonuspick.prize_pooper, bonuspick.footer.
  • Configuration - Pick Type — Pick from grid / Pick from row / Match pairs / Reveal & collect - Picks Allowed — 1–20 (default 3) - Prize Type — Cash / Multipliers / Free spins / Mixed - Trigger — text, e.g. "3 Bonus"

Wheel Bonus

A spin-the-wheel bonus awarding prizes, multipliers or feature entries.

  • Screens added — wheel_bonus, wheel_bonus_intro, wheel_bonus_outro.

Ladder / Trail Bonus

The player climbs a ladder collecting prizes at each step.

  • Screens added — ladder_bonus, ladder_bonus_intro, ladder_bonus_outro.

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Wild Mechanics

Expanding Wild

The wild expands to cover a full reel column. Per-screen configurable — you choose which screens (Base, Free Spins, etc.) get the expanding-wild behaviour.

  • Screens added — one EW — <parent> screen per chosen parent (e.g. ew_base, ew_freespin).
  • Feat-slots — expandwild.symbol, expandwild.expanded_overlay, expandwild.multiplier_badge.

Sticky Wild

Wilds stay on the grid for one or more subsequent spins.

  • Screens added — sticky_wild (reel-screen variant with sticky overlay).
  • Configuration - Duration — 1 spin / 2 spins / 3 spins / Until no win / Entire bonus - Accumulates — yes stickies add up / no one at a time - Multiplier — None / 2× / Random 2×–5× / Progressive - Trigger — Any Wild / Scatter / Feature only

Walking Wild

A wild shifts one position per spin until it walks off the edge of the grid.

  • Screens added — walking_wild (reel-screen variant).

Stacked Wilds

Wilds appear in stacks covering entire reel columns.

  • Screens added — none (renders within the Base screen via symbol mechanics).

Multiplier Wild

The wild carries a multiplier (2× to ∞) applied to wins it contributes to.

  • Screens added — none.

Colossal Wild (2×2+)

An oversized wild spanning 2×2 or more cells.

  • Screens added — none. (Use Reel Settings → Overlap to surface one symbol slot larger than its neighbours.)

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Buy / Ante

Buy Feature

The player pays a fixed multiplier of their stake to trigger the bonus directly.

  • Screens added — popup_buy (the confirm modal).
  • Feat-slots — buy.button, buy.button_hover, buy.confirm_panel_bg, buy.confirm_icon.
  • Configuration - Cost Multiplier — 50× / 75× / 100× / Custom (default 100×) - Buys Into — Free Spins / Hold & Spin / Bonus Game

Ante Bet

An optional side-bet that increases the bonus trigger frequency in exchange for a higher per-spin cost.

  • Screens added — none. (Surfaces the Ante Bet banner on the Base screen via the existing bannerAnte layer; toggle via Project → Ante Bet.)

Bonus Store

Scatters accumulate in a persistent in-game store for later purchase across sessions.

  • Screens added — none.

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Cascades & Reactions

Cascade / Avalanche

Winning symbols are removed; new symbols fall in to enable chain wins.

  • Screens added — cascade (reel-screen variant with cascade arrows).
  • Configuration - Fall Direction — Down (gravity) / Up / All directions - Symbol Source — From top of reel / Random fill / From all sides - Win Multiplier — None / +1 per cascade / ×2 per cascade - Max Multiplier — 1–1000

Tumble / Reel Collapse

Symbols collapse after a win and are replaced from above. Same family as cascade, different terminology and animation.

  • Screens added — tumble (reel-screen variant).
  • Configuration - Tumble Direction — Top to bottom / Bottom to top / All directions - Multiplier — None / +1 / ×2 / Progressive

Win Multiplier Trail

Consecutive wins in a single spin increase a multiplier counter (1×, 2×, 3×, …).

  • Screens added — win_multiplier (reel-screen variant).
  • Configuration - Start Value — number, default 1 - Increment — +1 per win / ×2 per win / Custom - Max Multiplier — number or ∞ - Resets On — No win / End of bonus / Never

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Special Mechanics

Megaways™

Variable reel height: each spin shows 2–7 symbols per reel. Licence required from Big Time Gaming.

  • Screens added — none (Base screen handles the variable grid via the megaways reelset).
  • Configuration - Symbols per Reel — 2–7 standard / 1–8 / 2–6 / Custom - Max Ways — 117,649 (6-reel) / 46,656 / Custom - Horizontal Reel — None / Top row / Bottom row - Licenced From — text, default "Big Time Gaming"

Infinity Reels

The grid grows by one reel per consecutive winning spin.

  • Screens added — infinity_reels (reel-screen variant with modified grid).

Cluster Pays

Wins formed by clusters of 5+ adjacent matching symbols. No paylines.

  • Screens added — cluster_pays (reel-screen variant). Common reelset: 6×4 or 7×7.

All Ways / MultiWays

Pays any left-to-right combination regardless of position. The 243-ways and 1024-ways reelsets use this mechanic implicitly.

  • Screens added — none.

Mystery Symbol

A special symbol that transforms into a random matching symbol after landing.

  • Screens added — none.

Symbol Upgrade

Symbols upgrade to higher-value versions during a bonus or random trigger.

  • Screens added — none.

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Gamble

Gamble

A post-win double-or-nothing on a card, coin, or wheel.

  • Screens added — gamble, gamble_intro, gamble_outro.
  • Configuration - Gamble Type — Card Suit (Red/Black) / Card Value (Hi/Lo) / Coin Flip / Wheel - Max Steps — 1–20 (default 5) - Win Cap — text, e.g. "500× stake" - Half Gamble — Available / Not available

Super Gamble

An extended gamble ladder with multiple steps up to a capped maximum.

  • Screens added — super_gamble, super_gamble_intro, super_gamble_outro.

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Win Sequence (always present)

The Win Sequence isn't in the regular toggle catalogue — it's a permanent fixture that ships on for every project. It owns the three celebration pop-ups:

  • Big Win (popup_win) — ov-bigwin_title, ov-bigwin_amount, ov-bigwin_btn.
  • Mega Win (popup_megawin) — ov-megawin_title, ov-megawin_amount, ov-megawin_btn.
  • Epic Win (popup_epicwin) — ov-epicwin_title, ov-epicwin_amount, ov-epicwin_btn.

Each pop-up has an editable Title, Amount and Button — click any of them in the canvas to edit the text inline. The dim layer behind darkens the underlying screen.

Defaults: BIG WIN / € 2,500 / COLLECT; MEGA WIN! / € 25,000 / COLLECT; EPIC WIN! / € 250,000 / COLLECT.

You can drag, scale and rotate every text overlay like any other layer. Empty placeholders pass clicks through so they don't trap the cursor when you're not editing them.

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Custom features

A _custom array in the project payload reserves room for custom features your team adds beyond the catalogue. The UI for editing this is internal-only today — if you need a custom mechanic, raise it via the Help page and we'll either add it to the canonical catalogue or wire your custom entry into your project.

Cheat sheet — features that add screens

If you're trying to figure out what your Flow screens panel will look like, here's the quick map. Free Spins, Hold & Spin, Bonus Pick, Wheel, Ladder, Gamble and Super Gamble each add an in-round screen *plus* an intro and an outro screen (three screens per feature). Sticky / Walking Wild, Cascade, Tumble, Win Multiplier, Infinity Reels and Cluster Pays add a single in-round variant of the Base screen. Expanding Wild adds one screen per parent. Buy Feature adds a single confirm pop-up. The rest don't add screens — they modify mechanics within existing screens.

Cheat sheet — features that have configurable values

Free Spins · Bonus Pick · Sticky Wild · Buy Feature · Cascade · Tumble · Win Multiplier · Megaways · Gamble.

Anything not in that list has the feature toggle and nothing more — the mechanic is fixed by its definition. Most teams find they need more configuration on the bonus rounds and less on the special mechanics, which matches what the catalogue exposes.

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