u/thvaz

Hoje lancei o demo gratuito de Submundus, um dungeon crawler com construção de baralho que estou desenvolvendo sozinho.

A ideia é que o baralho seja seu corpo, inventário e relógio. Ferimentos, fome, sede e cansaço viram cartas que atrapalham suas mãos. Além de vencer os combates por turnos, você precisa explorar as salas, buscar recursos e decidir quando vale a pena parar para descansar.

O demo oferece cerca de 30–60 minutos de jogo, com diferentes personagens e encontros que variam entre as partidas.

Se você curte deckbuilders e exploração de masmorras, fica o convite para experimentar!

Demo na Steam:
https://store.steampowered.com/app/4984970/Submundus/?utm_source=reddit&utm_medium=social&utm_campaign=demo_launch&utm_content=jogosindiesbr

E, se gostar da proposta, adicionar o jogo à lista de desejos ajuda bastante o projeto.

I've been working solo on Submundus, my second game project. Submundus is a 3D dark-fantasy dungeon crawler/deckbuilder, and since people here often ask about actual AI pipelines, I thought I'd share mine now that the game is reaching a presentable state.

The basic pipeline looks like this:

Concept / visual development
I use Claude (now mostly Opus) to discuss concepts and ChatGPT image generation to explore characters, monsters, props, rooms and UI concepts. I usually iterate quite a bit before treating an image as something worth taking further.

3D assets
Selected concepts go into Meshy for 3D generation. The resulting models still need work on Blender and inside Unity: scale, materials, positioning, animations, lighting, effects, and sometimes shaders to make them fit the game's visual style. (I tried using Tripo but had more problems with their models than with Meshy, though Tripo models and texture sometimes look slightly better)

Programming
The game is built in Unity. I use Claude Code heavily for programming assistance, and I've also connected it to the Unity Editor through MCP, so it can inspect and work with the project rather than only generating isolated code snippets. I know C# but using Claude Code greatly enahnces development speed.

I still design the systems and decide how they should behave — card mechanics, combat rules, survival systems, progression, UI behavior, etc. AI mostly accelerates implementation, debugging and repetitive work.

Audio
I use Suno for music and some sound/ambience generation, then select and integrate what actually works in-game.

Integration / art direction
This turned out to be more important than I expected. Generating an individual monster, prop or image is fast; making dozens of independently generated things look like they belong to the same game takes considerably more iteration. A lot of the work ends up being lighting, palettes, shaders, UI, camera composition and simply rejecting outputs that don't fit.

I also use image generation a lot to visualize interface and features ideias before implementing.

The screenshots are from the current build. Still heavily in progress (one of the cards in one of the screenshots is still missing its illustration), but otherwise this is close to the visual quality I'm targeting for the demo.

The Steam page was approved today, and I'm currently rushing to finish the demo in time to hopefully enter the October Next Fest.

I'm curious how similar this is to other people's pipelines here — particularly people combining AI-generated 2D, 3D and code rather than using only one of them.

Steam page if you'd like to see the project:
Steam Page

I wish they are right and this game really uses AI art, for it will be a success.