InventoryFlow — Press Kit

Fact Sheet

One-Liner

„Production-grade RPG inventory toolkit for Unity, built on SaveStack. Atomic trade, equipment swap, world loot, 579 tests."

Three-Liner

„InventoryFlow is a production-grade Unity inventory toolkit for RPG developers. It ships slot-based inventory, equipment with Witcher / Skyrim swap semantics, multi-currency wallet with atomic-or-nothing trade, world containers, NPC loot, harvestables, rarity tiers, item compare, set bonuses, cooldowns, hotbar quick-use, 8 UGUI panels, 4 editor wizards, and full SaveStack persistence. 579 NUnit tests, runs under dotnet test in 200ms — built for shipping games, not prototypes."

What makes InventoryFlow different

1. Atomic semantics throughout — every trade, transfer, drop, sell is symmetric all-or-nothing. No half-applied state to debug.
2. dotnet-test compatible — the pure-C# domain layer runs outside Unity for fast CI loops.
3. SaveStack-integrated — persistence is solved on day one, with _v schema envelope for migration.
4. Polymorphic interaction — single IInventoryInteractable anchor handles WorldContainers, Pickups, Harvestables, NPCs, plus your custom interactables.
5. AAA RPG polish out of the box — Witcher-3-style item compare, Skyrim quick-slots, Diablo right-click split, EQ multi-currency wallet. Not promised as "future updates" — shipping in v1.0.
6. Bundle with SaveStack — both plugins built by the same publisher, integrated by design, €30 cheaper than buying separately.

• Future bundle (Q3 2026+): "RPG Content Pipeline" — InventoryFlow + LoreFlow + (optional) DialogueFlow — pricing TBD, expected launch discount window aligned with LoreFlow v1.0.

Pre-Approved Quotes (for review embedding)

Reviewer können diese Quotes direkt in ihre Reviews einbetten ohne separate Anfrage:

From the developer

„Other inventory plugins either coupled to a giant character controller suite I didn't want, shipped a custom save framework I'd have to wrap myself, or skipped the RPG polish that actually makes inventories feel good. I built InventoryFlow because evaluating yet another one wasn't worth my time."

— Avana, Founder of Avanatro Tools

„Atomicity matters more than features. Every trade, transfer, drop — symmetric all-or-nothing. The hardest bugs in inventory systems aren't 'missing feature' bugs, they're 'half-applied state' bugs."

— Avana, Founder of Avanatro Tools

Technical (developer-facing)

„InventoryFlow's pure-C# domain layer runs under dotnet test in 200ms — that's faster than firing up the Unity Test Runner. For a solo developer iterating on inventory logic, that's the difference between 5 changes per hour and 30."

— Avana, Founder of Avanatro Tools

About SaveStack integration

„We didn't slap a save layer on at the end. SaveStack came first, InventoryFlow's persistence is built on its saver framework. The bundle isn't a co-marketing trick — the integration is by design."

— Avana, Founder of Avanatro Tools

On the InventoryFlow + LoreFlow stack (2026-05-16):

"InventoryFlow handles the structure — slots, equipment, atomic trades. LoreFlow, our companion plugin shipping in Q3, handles the content — generates lore-consistent item definitions from a Lore Bible you control. Together they're a complete AI-powered RPG content pipeline that lives entirely in the Editor: no runtime API calls, no DSGVO surprises, no per-player cost. We think this is where indie RPG tooling is going."

— Avanatro Tools team

Press Q&A

Q: Why build InventoryFlow when there are existing inventory plugins?

A: Evaluating existing plugins took the same effort as building a basic prototype. Once a working prototype existed, it grew organically into a production system as it shipped in two of our own RPG projects (Lumenfeld 2D and 3dThahalis 3D OpenWorld). The plugin started as internal tooling, not a market response.

Q: What's the relationship to SaveStack?

A: Same publisher (Avanatro Tools). InventoryFlow depends on SaveStack — the saver framework, atomic file writes, AES encryption, schema migration are SaveStack-provided. Bundle pricing reflects the integration: buy them together at a €30 discount.

Q: Does InventoryFlow support 2D and 3D games?

A: Yes. The WorldContainers module includes both 2D and 3D Interactor logic (OverlapCircle for 2D, OverlapSphere for 3D). All UI panels are UGUI — pipeline-agnostic. Both Lumenfeld (2D) and 3dThahalis (3D) ship on InventoryFlow.

Q: What's the upgrade path from existing inventory plugins?

A: Migration guides ship for PlayerPrefs + ad-hoc class, Opsive Ultimate Inventory System, Devdog Inventory Pro, and Game Creator Inventory. The patterns are similar enough that a typical migration takes 6–12 hours of focused work.

Q: How are 579 tests organized? What's the coverage like?

A: Pure-C# domain layer at ~95% coverage (Inventory, Equipment, Currency, all helpers). MonoBehaviour-Lifecycle and PlayMode-specific behaviors (Coroutines, Physics-Cast) are validated via Unity Test Runner during release QA but not in the dotnet test suite — those tests come in v1.1 once we have a dedicated PlayMode setup. Full coverage matrix in Documentation~/coverage-audit.md.

Q: What's on the v1.1 roadmap?

A: Vendor module (NPC merchants with refill schedules, buy-back buffer, vendor-specific markup), Crafting module (recipes, stations, recipe books), 5 Welle-3 RPG polish features (buy-back, bulk-sell, currency-conversion, equipment-conflict-groups, auto-replace-better-pickup), full PlayMode test sweep. ETA ~8 weeks after v1.0 submit. Free upgrade for v1.0 customers.

Q: Why €49.99? Why not undercut competitors?

A: Mid-market sweet-spot. Under €30 signals "entry-level plugin" which underprices the 579 tests + SaveStack integration. Over €60 is suite-tier (Opsive) without a suite. €49.99 with €30 bundle savings is the cleanest positioning.

Q: Will InventoryFlow get major version updates like v2.0?

A: v2.0 is planned with grid-spatial inventory (Diablo / PoE / Tarkov stash-grid model) and socketing/modifiers. That's a breaking change to the slot model and warrants a new major version with separate pricing. Migration path v1 → v2 will be documented. ETA Q2 2027.

Q: Is InventoryFlow open source?

A: No, but full source code is included with purchase. Asset Store EULA — buyers can modify for their own projects but not redistribute. Same as SaveStack.

Q: What about multiplayer / networked games?

A: v1.0 is single-player-focused. Networked inventory state can be built on top of InventoryFlow by serializing Inventory state via the existing DTOs over your netcode of choice. Mirror-/Netcode-specific adapters are planned for v1.2+ pending demand.

Q: How does InventoryFlow compare to [Specific Competitor]?

A: See the feature matrix at tools.avanatro.com/inventoryflow/compare. Key differentiators: atomic trade semantics, dotnet-test compatibility, SaveStack-native persistence, polymorphic interactable anchor, AAA RPG polish out of the box.

Brand Assets (Asset-Pack)

Avana lädt diese Assets nach Submit-Approval auf tools.avanatro.com/inventoryflow/press hoch. Reviewer können sie direkt herunterladen.

Brand Colors

Primary Background:    #0d1117 → #161b22 (GitHub-dark gradient)
Primary Accent:        #00bcd4 (cyan/teal — bundle-differenzierend zu SaveStack-Orange)
Text on Dark:          #ffffff
Text on Light:         #161b22
Rarity Common:         #c8c8c8 (light gray)
Rarity Uncommon:       #4caf50 (green)
Rarity Rare:           #2196f3 (blue)
Rarity Epic:           #9c27b0 (purple)
Rarity Legendary:      #ff9800 (orange)
Rarity Unique:         #e91e63 (magenta/pink)

Brand Typography

Wordmark Font:         Avanatro-Tools-custom (Sans-Serif, Bold, slightly condensed)
Body Font:             Inter (Asset-Store-Web-Default) oder System-Sans-Serif
Code Font:             JetBrains Mono oder Cascadia Code

Embargo Policy

Reviewer können vor Embargo-Lift technische Fragen stellen, Code in privatem GitHub-Repo einsehen, eigene Reviews vorbereiten — aber Veröffentlichung erst nach Embargo-Lift. Bei Bedarf: contact@avanatro.com mit Subject „Press: [Outlet/Channel]".

Story Angles für Reviewer

Reviewer haben oft die Frage „Was ist die Story hier?". Drei Angles, die funktionieren:

Angle 1: Solo-Dev-Story

„Avanatro Tools ist ein Solo-Studio mit zwei laufenden RPG-Projekten. SaveStack und InventoryFlow sind aus Selbstbedarf entstanden, nicht aus Markt-Analyse. Die strenge Test-Disziplin (579 Tests bei InventoryFlow, 700+ bei SaveStack) ist Konsequenz davon, dass der Solo-Dev als einziger Bug-Finder agieren muss."

Angle 2: Atomic-Semantics-Story

„InventoryFlow ist opinionated über Atomicity. Trade ist all-or-nothing. Transfer ist all-or-nothing. Drop ist all-or-nothing. Das ist nicht ein Feature, das ist eine Disziplin — die meisten Inventory-Plugins ignorieren Failure-Pfade und produzieren Half-Applied-State-Bugs. InventoryFlow zwingt sich, jeden Failure-Pfad zu testen."

Angle 3: Bundle-Story

„SaveStack und InventoryFlow sind als Bundle gedacht. Der Save-Layer ist nicht ein Add-on nach Submit — er ist die Grundlage. InventoryFlow's Datenmodell ist auf SaveStack's Saver-Framework optimiert. Das Bundle €69.99 ist nicht Cross-Selling, es ist die intendierte Architektur."

Comparative References

Reviewer, die InventoryFlow gegen Konkurrenz vergleichen wollen, finden eine vorgefertigte Feature-Matrix unter Marketing/CompetitiveComparison.md (oder öffentlich unter tools.avanatro.com/inventoryflow/compare nach Approval).

Wichtig: Avana erlaubt direkten Compare-Use, bittet aber um faire Recherche — die Feature-Matrix dort ist Stand 2026-05-14 und Konkurrenz-APIs ändern sich.

Direct Contact

Founder & Developer:    Avana
Publisher:              Avanatro Tools
Email:                  contact@avanatro.com (general) / press@avanatro.com (review requests)
Website:                tools.avanatro.com
InventoryFlow:          tools.avanatro.com/inventoryflow
SaveStack:              tools.avanatro.com/savestack
GitHub:                 github.com/avanatrotools
Asset Store Publisher:  [Asset-Store-URL nach Approval]

Response time: typically within 24 hours during launch period (2026-07-15 to 2026-08-15), within 48 hours otherwise.

Distribution

Press-Kit URL nach Submit-Approval:

tools.avanatro.com/inventoryflow/press

Direct-Download-Links für Assets-Pack:

tools.avanatro.com/inventoryflow/press/assets.zip       (alle Brand-Assets)
tools.avanatro.com/inventoryflow/press/screenshots.zip  (7 Screenshots 1920×1080)
tools.avanatro.com/inventoryflow/press/trailer.mp4      (30s)
tools.avanatro.com/inventoryflow/press/tutorial.mp4     (7min, falls direkter Download statt YouTube gewünscht)

Beta-Pilot-Reviewer bekommen die Links 1 Woche vor Submit per Email, zusammen mit ihrem persönlichen Embargo-Lift-Datum.