Mac Source Ports

Developer: Quetoo Team
Release Date: May 22, 2026

So this is interesting, I just stumbled on this randomly a few weeks back right after it was released, although it was apparently in the works for twenty years.

Quetoo is an open source project that's a combination of id Tech engines and technologies, incorporating every graphics technique the source port communities are known for, and recreating some of the classic maps of the Quake series without actually using any of its data.

The result is a purely community focused freeware arena shooter that can even be edited with modern tools like Trenchboom.
Definitely one to keep an eye on.

Developer: Team Hoi
Release Date: 1994

Also an Amiga game from Team Hoi, Clockwiser at first appears to be a standard issue match-3 game, but the twist is not something I've seen before. You are presented with two arrangements of tiles and your job is to make the left arrangement look like the right. Your only means of doing so is to draw a rectangular box and then rotate the tiles clockwise. On top of that there are a myriad of rules, everything from gravity to teleporters to bombs. I was also alerted to the existence of this game from one of the original game's authors which I thought was pretty cool.

Developer: Team Hoi
Release Date: August 1992

Another game where you can tell it's an Amiga game just by looking at it, Hoi hails from the era when developers were filling in the gaps, as well as the era when a commercially viable retail title could be handled by just a few people.

In Hoi you play as a dinosaur braving tests and obstacles in order to find a female partner, which is at least unusual in so far as premises go. I was alerted to the existence of this game from one of the original game's authors which I thought was pretty cool.

Developer: Raven Software
Release Date: March 26, 2002
Source Code Release Date: April 3, 2013

The third entry in the increasingly confusingly named franchise, Star Wars Jedi Knight II: Jedi Outcast (aka Star Wars: Dark Forces III: Jedi Knight II: Jedi Outcast) eschews a custom engine in favor of id Tech 3, which powered Quake III: Arena. The result is a game that has graphically aged better than its predecessors.

  Buy Star Wars Jedi Knight II: Jedi Outcast on GOG.com

  Buy Star Wars Jedi Knight II: Jedi Outcast on the Humble Store

Developer: Raven Software
Release Date: September 16, 2003
Source Code Release Date: April 3, 2013

The fourth and most recent entry in the franchise that gave up on numbers, Star Wars Jedi Knight: Jedi Academy (aka Star Wars: Dark Forces IV: Jedi Knight III: Jedi Outcast II: Jedi Academy) continues to use id Tech 3, which powered Quake III: Arena. This gives the game a more consistent look compared to its the previous title. Although seemingly less of a sales force than its predecessor, it enjoys a multiplayer community that is still active today.

  Buy Star Wars Jedi Knight: Jedi Academy on GOG.com

  Buy Star Wars Jedi Knight: Jedi Academy on the Humble Store

Developer: Thalion Software
Release Date: April 11, 1993
Source Code Release Date: May 7, 2023

The Commodore Amiga was one of those computers where it jumped ahead of the competition by several miles, but then stayed there for a long time and got surpassed by the competition. I think this is why there's such a distinctive look to the games the platform and why it was so accessible to smaller game designers, the types we'd call "indie" today.

Ambermoon is an RPG for the Amiga that really looks like an Amiga game. It was the second part of an unfinished trilogy. Although the original game's source has been released, the source port we're pointing to is Ambermoon.net which like it sounds is a recreation of the original game in C#/.NET (the original game was Amiga-specific Assembly language and isn't a great candidate for portability).

In addition to being able to download it below from the developer's GitHub page, the game is also available on itch.io as a "Name your own price" download in case you want to support or tip the developer.

Developer: Apogee Software
Release Date: August 3, 1993
Source Code Release Date: August 5, 2018

An Apogee platformer that's a lot like Duke Nukem II but made from the Commander Keen engine, Bio Menace was never as popular as its contemporaries but developed a cult following of its own. You play as Snake Logan, a CIA operative who must save Metro City when it is invaded by mutants.

It was remastered in 2025 but the original was made freeware that same year as well.

  Buy Bio Menace on GOG.com

Developer: id Software
Release Date: August 3, 2004
Source Code Release Date: November 22, 2011

DOOM 3 was the third game in the DOOM series, released in 2004. Support for the expansion pack Resurrection of Evil is also included.

NOTE: Most retailers such as Steam and GOG are now selling DOOM 3 and DOOM 3: BFG Edition as a package together under the name DOOM 3 so buying that will get you both games.

  Buy DOOM 3 on GOG.com

  Buy DOOM 3 on the Humble Store

Developer: PopCap Games
Release Date: May 5, 2009

Plants vs. Zombies is an example of casual game perfection, from developer PopCap Games at their peak, pre-acquisition. Effectively a tower defense game without being a tower defense game, it has a difficulty curve so incredibly well done that at some point you're pulling off elaborate strategies without ever feeling like you're not ready for it. With an addicting amount of depth, additional mini-games once you finish the campaign, and no microtransactions or mismatched mechanics, it's a game that absolutely holds up.

It's also a game where I had no idea there was a modding community, let alone a nearly perfect reverse engineered source port nearly five years in the making. I honestly thought for a minute it was some sort of trick but no, PvZ Portable is a true reverse engineered port.

NOTE: While PvZ-Portable definitely works with Plants vs. Zombies: Game of the Year Edition, I'm not clear if it works with the regular (non-GOTY) edition. As of this writing the GOTY edition is the only version on Steam. As far as I can tell it does not work with the recent Plants vs. Zombies: Replanted edition.

Developer: id Software
Release Date: November, 1991
Source Code Release Date: June 9, 2014

When you have every other id Software source port on your site, all that's left is Catacomb 3-D. The story is detailed in books and articles but the gist is that the company we know as id Software started out as employees working for a Lousiana-based company called Softdisk.

Similar to the path the Wolfenstein series took, John Carmack wrote a 2-D top-down game called Catacomb for the Apple II, followed by a sequel which is either named Catacomb II or The Catacomb depending on who tells the story. And then they decided to take the series into 3-D with Catacomb 3-D

The plot of the game is to navigate the catacombs of the local town cemetery to defeat the evil bad guy and rescue your friend. Whenever you run into an early game in a genre, you usually expect the game to be primitive compared to what came later, and it is, but it's much closer to Wolfenstein 3-D than I expected or remembered. It's rough around the edges and definitely held back by technology but you really do feel like you're playing a 3-D game with EGA graphics which had to be mind blowing in 1991 for the handful of people who ever got this game.

  Buy Catacomb 3-D on GOG.com