# bvschaik/julius

An open source re-implementation of Caesar III

Repository: https://github.com/bvschaik/julius
Canonical: https://ross.abutalabs.com/products/julius
Language: C
License: AGPL-3.0
License Family: copyleft
Topics: game, citybuilder, clone
Last push: 2026-06-23T17:39:13+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 9, longevity 100
- inputs: {"age_days": 3301, "days_push": 71, "days_rel": 398, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3354, forks 436 (observed 2026-08-28T04:07:57.897613+00:00)

## What it is
Julius is an open-source re-implementation of the classic city-building game Caesar III, written in C, with identical game logic and 100% save-game compatibility with the original. It adds quality-of-life enhancements such as widescreen support and windowed mode, and requires the original Caesar 3 game files to run.

## Use cases
- play Caesar 3 on modern widescreen displays
- run Caesar 3 on Linux, macOS, Android, or in a browser
- play Caesar 3 in windowed mode on a 32-bit desktop
- keep using original Caesar 3 save games with an open-source engine
- play Caesar 3 on a Nintendo Switch or PS Vita
- use MP3 music files with Caesar 3

## When to choose
- you own Caesar 3 and want a faithful, vanilla experience with modern resolutions and platform support
- you want to play Caesar 3 on a platform the original doesn't support, like Android or Switch
- you need save-game compatibility with the original Caesar 3

## When to avoid
- you want gameplay changes like roadblocks - use the Augustus fork instead
- you don't own the original Caesar 3 game files, since Julius cannot run without them
- you're looking for a modern city-builder rather than a re-implementation of a 1998 game

## Facets
- artifact type: application
- maturity: active
- function: game-engine, graphics
- domain: gaming-tools, cross-platform
- platform: windows, browser, cross-platform, cpp
- tags: caesar-3, city-builder, open-source-remake, retro-gaming, c, game-development, linux, macos, android

## Member repositories
- bvschaik/julius (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:57.897613+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:40:56.028123+00:00, confidence not recorded.
  - readme: https://github.com/bvschaik/julius (fetched 2026-08-28T04:07:57.897613+00:00, sha 5a43a1ad7071)
- Data as of 2026-08-30T08:39:29.467469+00:00.