Preparing for a Series A Round: Why a Prototype Is Indispensable
When it comes to a Series A round, investors don’t expect a concept document or a presentation. They want a playable prototype — a product they can launch, evaluate the gameplay, and feel its potential.
Without a prototype, your funding request turns into faith in the team, and faith doesn’t measure investment volumes.
The lack of a working game prototype directly drags out the deal. Requests for revisions, repeated meetings, doubts about valuation — all of this costs time and budget.
Worse: while you’re showing slides, competitors are demonstrating live demos to investors, and your project ends up in the position of playing catch-up.
A prototype is a risk-reduction mechanism for both sides. The investor sees how the game looks and feels in action, and you get a concrete reason to discuss metrics, economics, and the development plan in Series A language.
Specifics instead of promises — that is exactly what distinguishes a successful round from endless meetings.
At truetech.by, we have been developing games for the market for over 10 years and know what a promising product looks like through an investor’s eyes.
We build a prototype that reveals the game’s potential: clear mechanics, polished gameplay, and architecture that leaves room for scaling into a full version.
In the end, you arrive at investor meetings with a working product in hand, not with promises to finish development after funding. This radically increases trust and accelerates the decision-making process for Series A.
What a Prototype Gives Your Game Project
A prototype is not a “half-baked game” but a tool for quickly testing the core idea before large budgets are invested in the project.
It answers key business questions: whether the mechanics engage, whether players return after a day and a week, and whether they are willing to pay. Instead of guesswork, the owner gets real data about audience behavior — and can make decisions based on facts.
Market evaluation based on a prototype reduces risks at every stage. You see which elements work, which don’t, and adjust the concept before full production begins. A mistake found in a prototype costs tens of times less than a mistake discovered in a finished game. This saves budget and team time, and also protects against investing in an obviously weak idea.
For attracting partners and investors, a prototype is the most convincing argument. It is easier for an investor to believe in a project when they can play it themselves, see the reaction of first users, and review retention metrics.
It is often the playable prototype that moves conversations from general talk to a concrete funding proposal at a Series A round. You arrive at the meeting not with a presentation, but with a live product.
Moreover, a prototype helps build trust within the team and with future partners: everyone sees the common goal, understands its feasibility, and can evaluate intermediate results. This shortens approval timelines and simplifies development management.
The prototype becomes the starting point around which the entire game project is built — from game design to marketing strategy.
In the end, you get more than just a test version: you get a solid foundation — a validated idea, an understood audience, reduced risks, and a ready-made negotiation tool.
We help you design and release such a prototype — so your game project enters an investment round strong and prepared.
Prototype Development Formats for Your Task
A prototype for an investor is a decision-making tool. The format determines whether the investor sees the scale of the project, the quality of execution, or the real market demand.
We distinguish three basic formats: horizontal slice, vertical slice, and minimal product. Each has its own purpose, so the format is chosen before development starts — based on the question you are asking the market.
| Format | What it is | What it gives the project |
|---|---|---|
| Horizontal slice | Broad demonstration of mechanics without deep polish | Shows the scale of the idea — investors see the growth potential |
| Vertical slice | One mechanic polished to high quality | Demonstrates the level of execution — investors see the “hit factor” |
| Minimal product | A playable version for real users | Provides demand numbers — investors see the product’s economics |
The choice of format depends on what you need to prove: the breadth of the idea — a horizontal slice; quality — a vertical slice; demand — a minimal product.
We will help you choose a format that fits your task and timeline, and build a prototype that speaks to investors in the language of numbers and emotion. Tell us about your task — we will propose a format and a work plan.
Stages of Working on a Game Prototype
We have gone through more than a hundred projects from idea to finished product and know that a predictable process is half the success. Here are the development stages that turn your task into a working prototype without surprises.
Each step answers a specific question: what it costs, when it will be ready, and what you will have in hand.
- Development brief. You fill out a short questionnaire: business goal, target audience, and expected result. Based on it, we prepare a cost estimate and timeline — so you immediately understand the budget and planning horizon.
- Plan and architecture. We lock in the core mechanic, player scenarios, and success metrics. You get a plan with checkpoints — it is clear what will be ready at each review and how we evaluate the result.
- Design and interface prototype. We show the visual style, screens, and controls — you see the game through the eyes of a future user and make changes before the main development starts. This saves money: changes at this stage cost almost nothing.
- Implementation and core assembly. Developers create working code, connect the server side, and set up the database. You get a stable version you can show investors — without the phrase “we’ll finish it soon, hopefully.”
- Testing and polishing. We test the prototype on different devices, fix bugs, and speed up loading. Your prototype won’t let you down at the critical moment — everything runs smoothly during the investor demo.
- Prototype launch and handover. We deliver the final build, a launch guide, and documentation for your team. Next, you either present the prototype at a funding round or hand it over for full version development — we are ready to support the project at any stage.
What Is Included in the Game Prototype Deliverable
When you are preparing for a Series A round, an investor wants to see not just an idea but a working prototype they can run and evaluate.
So the deliverable includes not only the game itself, but also a complete set of documents and source code — so you can hand the project to new developers, show a demo script, and outline next steps in front of investors.
Here is exactly what you receive after the work is completed:
- Prototype executable file — ready to run on target devices, so an investor can play personally or watch a recorded demo.
- Source code for the entire project with clear comments — your team and external developers can understand it without depending on the original authors.
- Game design document — describing key mechanics, game economy, and interaction scenarios. This is the basis for expert evaluation of the product’s potential.
- Technical architecture description and build instructions — so the project can be reproduced, deployed, and developed without losses.
- Investor demo script — a step-by-step plan: what to launch, which details to highlight, and which metrics confirm readiness for scaling.
- Pre-release development plan — with stages, timelines, and checkpoints that show the investor your forecasts are realistic.
We compile the entire package into a single documentation set and hand it over to you along with the source code. You are guaranteed to receive exactly the package needed for investor negotiations and for handing the project over to further development.
Case Study: How a Prototype Attracted the First Investors
Investors don’t invest in ideas — they need proof that the product can retain players.
A common team mistake is spending months on concept documents and presentations while funds still ask for “something we can play.” We close that gap with a working prototype that answers the investor’s main questions.
The studio truetech.by delivered such a case for a game dev startup: the client had a strong idea and a vision for the mechanic, but not a single playable sample.
In three months, we built a vertical slice of the game — starting location, core mechanics, and the first game session. That was enough for the team to present the product through live interaction, not slides.
The result — preliminary agreement from a venture fund for a Series A round. Investors saw not promises, but real user reactions: more than 500 testers played the prototype, and 40% of them returned to the game the next day. Game sessions averaged 12 minutes — players stayed engaged and asked for more.
Stages of Working on an Investment Prototype
| Stage | What the studio does | Why it matters to investors |
|---|---|---|
| Brief and idea audit | Package the concept into a playable scenario | Shows the team knows how to turn a concept into a product |
| Core mechanics | Build the main game action — controls, goal, excitement | The investor quickly understands whether the audience will play the product |
| Session and onboarding | Create fast entry into the game without a tutorial | Proves the product is understandable to a new player — and therefore scalable |
| Focus group testing | Conduct usability tests with the target audience | Provides the fund with real metrics: retention, session duration, returning users |
| Pitch documents | Prepare a simple breakdown: what was done, what was tested, what we plan | Gives the client ready-made arguments for negotiations |
This approach shortens the path to investment: instead of abstract promises, the team brings a product, its metrics, and a development plan to the meeting with the fund. We have already walked this path with one startup — we are ready to walk it with your project. Leave a request, and within a month we will prepare a prototype plan that will interest investors.
How to Choose the Right Format for Your Project?
The prototype format depends directly on the task it solves on the way to the round. For an investor, it is important to see not just an idea, but proof that the product works, holds attention, and is ready to scale.
So first define your goal: validate the core mechanic, showcase the game loop, or demonstrate monetization. Each of these scenarios has its own prototype type — from a narrow vertical build to a broader demo version.
The main selection criterion is the amount of content and depth of polish needed for a convincing presentation. If you want to show that the game mechanic itself creates interest and retention, a vertical slice is enough: one location, a few levels, and one core feature.
Such a prototype is built quickly, requires fewer resources, and lets you collect the first player behavior metrics — and those become the strongest argument for the investor.
If the product involves complex economics, social interaction, or progression, the investor needs a fuller format — a horizontal slice. Here you show more systems, but without deep balance tuning.
Such a prototype helps evaluate the overall impression and demonstrates that the product is ready for the next development stage. In this case, you answer not the question “does the idea work?” but “can the project become a standalone business?”
The third scenario is a prototype for testing monetization and metrics. It focuses on in-app purchases, ads, or subscriptions, and lets you showcase the project’s economics.
Here, it is crucial that the investor sees numbers: retention, conversion to payment, average revenue per user. This format helps justify the revenue forecasts typically requested at Series A.
We will help you choose the right type for your stage and budget, and then build it in a short time without losing quality.
Frequently Asked Questions About Game Prototype Development
Before defending a project in front of investors, every studio founder has the same questions: how long the prototype will take, what exactly is included in the result, how protected you are from risks, and why you can’t save money at this stage.
At truetech.by, after ten years of working with game studios, we know that the earlier you resolve these doubts, the faster the team reaches the round and the more confident it looks in front of the fund.
That is why we have gathered answers to the three most common questions. If your scenario isn’t here — just write to us, and we’ll handle it individually.
What does the game prototype include and what will I show investors?
The finished prototype includes a playable vertical slice: core mechanics, a basic interface, one or two locations, and minimal content. That is enough for an investor to go through a level in 5–10 minutes, feel the gameplay, and evaluate the product’s potential.
You also get a short presentation: what metrics were recorded, which hypotheses were confirmed, and what you plan next. That is the minimum that separates an “idea on a slide” from a “working product.”
What guarantees are there that the prototype will meet deadlines?
Timing is the main risk at the pre-investment stage, so we fix it in the contract. Before we start, we create a plan with weekly checkpoints: every Friday we show working builds, not promises. If any stage slips, you’ll know a week in advance, not a day before delivery.
In our experience, a typical prototype takes 6–10 weeks — we include this range in the plan at the brief stage.
What happens after the prototype — where do we go next?
A prototype is a foundation. After it is approved, we help you create a roadmap to a full release: which mechanics to deepen, when to introduce monetization, and where to run the first playtests.
Investors value not only a working build but also a clear development strategy, so the final report includes a plan for the next stages with metric benchmarks.
In short: a prototype is not just “to play around with” — it is a persuasion tool. You get clear deadlines, a transparent guarantee, and visual material for negotiations with the fund. Any other questions we can discuss personally.Let’s Discuss Your Game Project and a Possible Prototype
You have invested time and resources into an idea — now investors need proof. A working game prototype clearly shows the product’s potential and removes questions about the project’s viability.
That is why it’s so important to build it quickly, without unnecessary costs, and with a focus on the key mechanics that point to future profitability.
Start with a short consultation: tell us about your task, deadlines, and constraints — we will suggest the optimal prototype format for preparing for a Series A round and calculate the budget. To make the discussion as productive as possible, prepare the following information:
- The project’s core concept and target audience.
- 2–3 reference games or examples you are looking at.
- Key mechanics you need to demonstrate to investors.
- Launch platform: PC, mobile devices, showroom, or web demo.
- Desired timeline for the finished prototype.
- An indicative budget — this helps us immediately understand the scope of work.
The more accurate the brief, the faster we can propose a solution. After the consultation, you will receive a work plan and a clear cost estimate — without hidden stages or multi-year cycles.
With experience from more than a dozen game projects, we are able to meet tight deadlines and show the investor exactly what they expect.
Send your task today — leave a request for prototype development. We will contact you within one business day, answer your questions, and help you prepare for the Series A round with a strong demo that actually works.
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