ReelGrove
Open studio

For the people who make slot games

Make your next
slot game
your own.

A creative workspace for Engine (Stake Engine) studios. Iterate on your game’s artwork, sound and animations in a live preview, explore the math and put your AI agents to work.

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A look inside your next creative workspace

Meet ReelGrove.38 seconds · English narration & captions
Read the overview transcript

Your next slot game should feel like yours. Meet ReelGrove: a creative workspace for Engine studios. Start with example games, then shape the art, tune the sound, and bring your symbols to life in Animation Lab. Preview your changes as you work. Explore advanced math statistics and run frontend checks before your next build. Invite your team with the permissions each person needs. Connect your AI agents through scoped MCP tools. From the first idea to the final details, keep your studio moving. Make it yours, with ReelGrove. Explore reelgrove.net.

Real editors and example games. Generated demo artwork. Preview with test credits.

Real starters. Your art direction.

One visual world.
Two ways to play.

Engine’s Lines and Cluster examples, rebuilt with generated Ember artwork. These are actual game replays, showing the finished symbols and background in play.

Actual Engine Lines example replay with generated Ember gems, gold symbols and an atelier background; the final display shows a simulated $1 bet and $0.10 win.
01 / LINES STARTER

Ember Lines.

View full screenshot ↗
Actual Engine Cluster example replay with generated Ember artwork on a seven-by-seven board; the final display shows a simulated $1 bet and $0.20 win.
02 / CLUSTER STARTER

Ember Cluster.

View full screenshot ↗

Actual Lines and Cluster starter replays with generated Ember artwork. Demo credits only.

Your creative workspace

Create. Preview.
Keep refining.

Iterate on artwork, sound and animation with your game in view. Save a change, preview it in context and keep refining.

REELGROVE / ART LABACTUAL EDITOR CAPTURE
Actual Art Lab with three generated symbols saved to the Citrus Club Demo and displayed in its private preview. Actual Art Lab with three generated symbols saved to the Citrus Club Demo and displayed in its private preview.
Owned Demo · three saved symbol replacementsTest credits · no cash value
01 / ART

Make it unmistakable.

Replace a symbol or background. Supported games apply saved artwork live; older builds reload the private preview.

02 / SOUND

Give every moment a voice.

Audition clips and tune your mix. Supported games pick up sound changes live for the next cue.

03 / MOTION

Add that little spark.

Shape supported idle and win animations with pulse, bob and tilt. Save a preset and sample it in context.

04 / ANIMATION

Give your character a performance.

Build a rig, shape its motion and preview a saved clip in your game. Start in Animation Lab ↗

Animation Lab

From a simple rig
to a full performance.

Open the Animation Lab tab in your project’s Lab. Build, import and refine editable rigs, then take the animation and its playback runtime into your own game.

Rig and deform.

Bones, attachment variants and skins give your character structure. Shape meshes, paint and lock weights, key deformation, and share geometry through linked meshes.

Rigging and meshes ↗

Shape every pose.

Refine timing in the dopesheet and value graph. Normalize curves to compare different channels, edit groups of keys and Bezier tangents, and compare poses with ghosts.

Timing and curves ↗

Add responsive movement.

Use IK targets, transform constraints and editable paths. Add spring motion with gravity, damping and travel stops that replay consistently when you scrub.

Constraints and physics ↗

Layer the performance.

Key tint and flash-to-white colour, and blend sprites with add, screen or multiply. Animate drawing order, clip with polygon masks, and mix override and additive layers with bone masks and crossfades.

Colour, order and mixing ↗

Time the finishing touches.

Place events with optional values and audio cues, edit trims, fades and gain, and bind exact saved clips or mixes to supported game hooks. Review versions and recover retained drafts.

Sound, events and recovery ↗

Bring a rig. Keep the result.

Import supported Spine 4.1.17 or 4.2.22 JSON, reuse native rigs and export atlas players or packages with runtime source. Project-use runtime rights continue after your subscription ends.

Import support and export options ↗

Spine import supports a verified subset; the compatibility report explains unsupported features before insertion. Exports include their runtime license and third-party notices.

Advanced math statistics

Know the odds.
See the whole picture.

Explore RTP, hit rate, variance and payout distributions from your published math. Compare modes, run session simulations and use calculators to estimate exposure and sample sizes.

Computed from the published weights. These are read-only reports of the source files. They describe the distribution; they do not establish deployed game behavior or submission approval.

Keep the gaps visible. This Demo has 23 passed checks, one publication-format failure and three manual reviews. Automated checks and remaining reviews are both part of the report.

Look beneath the surface

Every file.
A clearer picture.

Inspect your published frontend: its entrypoint, declared game identity, local resources and artwork registry. Each result stays tied to the project revision.

Computed from the frontend files. This Demo passes four static checks across 12 files. Refresh the report to inspect the current revision without running the game.

Browser verification still matters. Authentication, play, replay, layout and saved Lab replacements need separate browser execution. Static checks do not establish runtime behavior or submission approval.

A place to start. Room to make it yours.

From first idea
to your next game.

Bring your existing Engine game or start with an available approved template. Keep your build tools and bring the team into one private project.

  1. 01

    Start a game.

    Import a completed Engine frontend and published math where independent imports are enabled, or choose a starter template.

    YOUR OWN PRIVATE COPY
  2. 02

    Find its character.

    Add artwork, bind sound cues and animate your symbols. Connect saved animations to supported game hooks.

    ART, SOUND & ANIMATION
  3. 03

    Make it better, together.

    Save exact test outcomes, capture a release candidate and collect team reviews against the version they saw.

    SAVED SCENARIOS & STUDIO REVIEWS
  4. 04

    Take your work with you.

    Download a standalone game, development bundle or portable project. Keep saved Lab work when activating your next build.

    PLAYABLE & EDITABLE EXPORTS

Bring your existing game and connect CI

Follow the first-project walkthrough

Repeat exact outcomes across saved profiles and controls, then review a release against the evidence your team inspected. Template availability varies. Development examples and exports do not grant Engine submission approval. See how ReelGrove fits your Engine workflow.

A studio for your people

Different disciplines.
One shared project.

The work around the work, in one place. Invite your team, decide who can change what, and manage the editor capacity your studio needs.

The owner keeps full access and controls billing. Permissions describe access; tools are available where the current product supports them.

Connected to your workflow

MCP for
your agents.

Give your agents project tools for artwork, sound, motion and math. Let them inspect assets, apply supported changes, compare modes and run calculations or simulations through the scoped access you choose.

Project keys have scoped permissions and an expiry. Use studioctl to upload your next build or download a verified archive. Capture regression matrices and inspect release readiness from CI. Editing follows your team’s current access and editor capacity.

Read the MCP developer guide

An example tool workflow

“Review the sound cues
and help me refine the mix.”

  1. 01
    Read the current projectproject_context
  2. 02
    Inspect cues and their saved levelssound_cues
  3. 03
    Apply a change with the observed revisionbind_sound

Illustrative workflow using real project tools. The guide covers setup, permissions and handling conflicting edits.

A closer look

Small details.
A bigger picture.

Two short tours of the creative work and the tools behind it. Watch with sound, or follow the on-screen captions.

See how to get started

Give your game its character.

Download video 28 sec · Art · Sound · Animation
Read the creative Labs transcript

The art sets the scene. The sound makes it land. The motion brings it to life. In ReelGrove, refine your artwork, tune your sound cues, and animate your symbols in one creative workspace. See the details come together. Make your next slot game your own. reelgrove.net.

Go deeper. Stay in control.

Download video 29 sec · Math · Frontend · MCP
Read the project tools transcript

Great slot games need more than great artwork. Explore advanced math statistics. Check your frontend files. Give your AI agent scoped MCP tools for your project. Keep your team in control, with permissions for every discipline. Meet ReelGrove. A workspace built for Engine studios. reelgrove.net.

A straightforward studio plan

Seats for makers.
Room for reviewers.

Explore the creative workspace together for 7 days with three editor seats, including the owner, and free reviewers. Subscribe to keep editing after the trial.

STUDIO PLAN7-day free trial
€49per editor / month
after your free trial

Free reviewers. Because good feedback matters.

  • 7 days for your team, 3 editor seats and all 7 starter games
  • Private projects and supported creative Labs
  • Role presets and custom team permissions
  • Test-credit previews and supported exports
  • Monthly billing. Cancel renewal at any time.

Prices exclude applicable VAT or other taxes. Checkout shows the final total. Each editor, including the owner, uses one seat per studio across all projects. Pending invitations are not charged.

Start your 7-day free trial

No card required. Invite editors and reviewers during your active trial.

A few things to know before you start

Built for Engine teams. ReelGrove is independent of Stake and Engine. Your company submits games through its own account.

From the Lab to your build. Inspect published math, check frontend files, and refine your artwork, sound and motion in the Lab. Keep your source workflow and bring rebuilt bundles back through Import new build. On supported owned projects, run reviewed math experiments and replay generated outcomes before choosing a build.

Your work stays yours. Supported exports include captured Art, Sound and Motion settings, saved Animation Lab rigs and supported game-animation bindings. Animation packages include the runtime and source under the supplied project-use terms. Exports keep working independently of ReelGrove. Template readiness and submission approval are separate.

Make room for your next idea

A good game starts
with your people.

Start your 7-day free trial