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Games · Jef Aldrich and Jon Taylor

System Mastery

by Jef Aldrich and Jon Taylor

Jef and Jon review old roleplaying games

Latest episodes

Showing 20 · updated from the feed

334 - Delta Green

Well, at least now people can't keep asking us to talk about it! Learn more about your ad choices. Visit megaphone.fm/adchoices

Aug 20
1 h 07 min

333- Marvel Heroic Roleplaying LIVE

Recorded live at GenCon 2026, this episode sounds like fuzzy butt because we didn't have a way to test the house equipment. If you can endure it, you're the true Marvel H

Aug 5
1 h 26 min

332 - 13th Age

Well, I guess it's better than 5e. How's the 2nd edition of this? Obviously we're taking them in order. Sound off in the comments and smash that like and subscribe or wha

Jul 22
1 h 17 min

331 - Blood and Vigilance

Shoot, we accidentally made a supplement episode. I thought this was a core book! Oh well, it's basically a superhero patch to be applied to D20 Modern, so at least it's

Jul 9
1 h 00 min

330 - Justice League Unlimited Preview

We've been pretty clear in our Marvel fanboy natures, especially when it comes to comics (we're pretty equal opportunity with films and cartoons), but that doesn't mean w

Jun 26
1 h 21 min

329 - Jukebox

Hey how about we let Jon pick a game, that's what I said. And then of course the moment I said okay we get a game with a karaoke mechanic. Learn more about your ad choice

Jun 13
1 h 15 min

328 - Heavy Metal Thunder Mouse

I still can't remember if this is our first FATE game or not, I think it might be? It's about mice, that are bikers. There's also frogs and stuff. It's fun. Let's talk ab

May 29
1 h 10 min

327 - Alternity

Sci-fi, TSR style. I can't figure out why I thought this would be D&D based, maybe because it came out so late in the TSR lifecycle that I thought it was WOTC? Anyway, it

May 14
1 h 21 min

326 - Ryutaama

Okay at this point I think it's starting to get obvious that the two of us are down with the cozy games. This one is cute as heck. Get on a little journey. Jef is only mo

May 1
1 h 36 min

325 - Root RPG

Sure it's PBTA but really we want to talk about the rare-ish process by which specifically board games become specifically RPGs. Plus these animals kill each other and ar

Apr 17
1 h 19 min

324 - Zenescope Presents: The Dark Age RPG

Western boob comics! Remember these? They've long since supplanted by that single mega milk manga image, you know the one. Anyway somewhere between the original Vampirell

Apr 1
1 h 20 min

323 - Dragonbane

Let's take a look at a game out of Sweden, née as Drakar Och Demoner, a classic dungeon crawl game with fairly simple mechanics, sleek layout, and pretty nice art. But do

Mar 19
1 h 11 min

322 - Incursion

Find out which one of us gets mad enough to break the no research rule as we dive in to discuss this game of alien abduction and intergalactic comedy exploration from the

Mar 5
1 h 20 min

321 - Ghost Dog: Way of the Samurai

Just one of your everyday run of the mill licensed games made out of Jim Jarmusch movies. Can't tell you how sick I am of playing Palladium's version of Down By Law. Lear

Feb 19
1 h 06 min

320 - Amazing Engine, Bughunter

Fine you want major trash that time forgot? You got it, buster. You're gonna sit write there while we review the whole pack. Of Amazing Engine, from TSR Games in 1993. An

Feb 5
1 h 23 min

319 - Red Dwarf

Who's ready for licensed comedy property RPGs? These are always the best, am I right? Today is Red Dwarf, an RPG based on a British comedy sci-fi series. And boy is it ev

Jan 23
1 h 13 min

318 - Man, Myth & Magic

Two games in one box? What a bargain! MM&M here comes with basic and advanced rulesets for its historical fantasy Earth setting, though the differences are so odd that it

Jan 9
1 h 25 min

317 - Fabula Ultima

Hell yeah we got something for under your tree! It's a System Mastery review of Fabula Ultima! For future readers that joke is because I put this episode up Christmas Eve

Dec 25 2025
1 h 14 min

316 - Truth & Justice

Well hello there, superhero game from 2005. We saw you from across the room, and we dug your weird mix between classic and modern game design vibe. Learn more about your

Dec 11 2025
1 h 18 min

315 - Companion's Tale

A dive into the world of mapmaking games, which we've briefly touched on in the past but are definitely a growing area of game design, but also, combat free! Hooray for S

Nov 30 2025
1 h 09 min

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