Essays about game development, thinking and books

Preparing a business plan for a game on Steam

Earning millions is easier than ever. I'll tell you how :-D

Earning millions is easier than ever. I'll tell you how :-D

When I posted my final presentation [ru] (slides) for World Builders 2023 (my posts, site), I promised to tell how I made a roadmap and a financial model for the game. So, here they are.

At the end of this post, we will have:

  • A brief strategy of our company: what we do, how, and why.
  • A table with our beacons — successful games roughly similar to what we want to make. Similar in gameplay, team size, budget, etc.
  • A composition of the team we need to assemble.
  • A roadmap — a development plan for our game.
  • An outline of our marketing strategy.
  • A financial model — how much we will spend, how much we will earn.
  • A large number of my caveats throughout the post.
  • Jokes and I hope witty remarks.

All the final documents can be found here.

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Grainau: hiking and beer at 3000 meters

How it all looks from the ground.

How it all looks from the ground.

For her vacation, Yuliya decided to show me the beautiful German mountains and took me for a couple of days to Grainau — it's a piece of Bavaria that's almost like Switzerland. At least, it is similar to the pictures of Switzerland that I've seen :-D

In short, it's a lovely place with a measured pace of life. If you need to catch your breath, calm your nerves, and enjoy nature, then this is the place for you. But if you can't live without parties, you'll get bored quickly.

What's there:

  • The highest mountain in Germany plus a couple of glaciers.
  • There's skiing in winter. If you really need it, you can find a place to ski in summer, but the descent is short, and the lifts are turned off.
  • A large clean lake and a couple of smaller ones.
  • A huge number of trails for hiking.
  • A huge number of waterfalls, streams, and a couple of mountain rivers.
  • Restaurants with beer.
  • Beautiful fallen trees in the forests, private property, fences, cows with bells, and "racing tractors" (I don't know how to name this phenomenon better, but tractors are moving fast there :-D).

This is briefly, and now in detail.

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Migrating from GPT-3.5-turbo to GPT-4o-mini

Guess when I switched models.

Guess when I switched models.

Recently OpenAI released GPT-4o-mini — a new flagship model for the cheap segment, as it were.

  • They say it works "almost like" GPT-4o, sometimes even better than GPT-4.
  • It is almost three times cheaper than GPT-3.5-turbo.
  • Context size 128k tokens, against 16k for GPT-3.5-turbo.

Of course, I immediately started migrating my news reader to this model.

In short, it's a cool replacement for GPT-3.5-turbo. I immediately replaced two LLM agents with one without changing prompts, reducing costs by a factor of 5 without losing quality.

However, then I started tuning the prompt to make it even cooler and began to encounter nuances. Let me tell you about them.

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Concept document for a space exploration MMO

The expected poster for the game. (c) DALL-E

The expected poster for the game. (c) DALL-E

As a hobby, I write concept documents for games. This is first in English. I have a few more in Russian and will eventually translate them.

One more concept for The Tale 2.0.

Title

Lords Captains MMO

Yep, it's a rip-off from Warhammer 40k and Rogue Trader, but it will do for the concept.

One-liner

Explore the infinite universe on a starship with millions of souls on board, unite and develop abandoned worlds.

Platforms

Browsers, mobile.

Genre

Exploration-driven trade-political MMO PVE sandbox.

Closest analogs

EVE, Sim City, Crusader Kings, 4X games, Rogue Trader.

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My GPTs and prompt engineering

Ponies are doing prompt engineering (c) DALL-E

Ponies are doing prompt engineering (c) DALL-E

I've been using ChatGPT almost since the release of the fourth version (so for over a year now). Over this time, I've gotten pretty good at writing queries to this thing.

At some point, OpenAI allowed customizing chats with your text instructions (look for Customize ChatGPT in the menu). With time, I added more and more commands there, and recently, the size of the instructions exceeded the allowed maximum :-)

Also, it turned out that a universal instruction set is not such a good idea — you need to adjust instructions for different kinds of tasks, otherwise, they won't be as useful as they could be.

Therefore, I moved the instructions to GPT bots instead of customizing my chat. OpenAI calls them GPTs. They are the same chats but with a higher limit on the size of the customized instructions and the ability to upload additional texts as a knowledge base.

Someday, I'll make a GPT for this blog, but for now, I'll tell you about two GPTs I use daily:

For each, I'll provide the basic prompt with my comments.

By the way, OpenAI recently opened a GPT store, I'd be grateful if you liked mine GPTs. Of course, only if they are useful to you.

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