Just as the question asks. For our purposes, "play" includes running or GMing a tabletop RPG, online or in person.

Very brief 4th edition D&D, now 1st Ed for the past year or so.

We had a period of time were we tried quite a few new systems out (WFRP 3e, Numenera, 13th Age, L5R, Star Wars EoE) but I suspect we will settle down to a period of playing 5e once that comes out.

Since August 2012, I've played D&D4e, nWoD (Mass: the Effecting and Mage: the Awakening), ACKS, M&M1e and 13th Age.

All in person/tabletop, ACKS I ran, the others I was a player. Easy to check, since we've been podcasting all our sessions since March 2011.

I've run WFRP, Mongoose Traveller, Savage Worlds, Call of Cthulhu and OD&D; played L5R d20, nWoD (Vampire: the Requiem and Changeling: the Lost) and now Numenera.

Not a lot of long-lasting campaigns, sadly, but a decently varied diet. Now the other GM and I are hellbent on having at least one long-lasting game in place.

Still looking for a chance to run ACKS (this one just demands a long-lasting campaign), RQ6, nWoD (Mage: the Awakening and Hunter: the Vigil being my favorites), Eclipse Phase, Aquelarre and yet more CoC, Traveller and WFRP.

All in person /tabletop:

Dragon Age- GM
Role master- player
Champions- player
1E AD&D- player
OD&D- DM
GURPS- GM
4E D&D-player

Heh - wow, I blew the lid off the top of the survey.

I counted a little more generously - since 1/1/2012 (so, 2 and a half) it's been - on the conservative side - 17 (16 since July 2012). Those 17 worked out to approx. 35 or so sessions of play.

Mostly as GM. I've taken to tracking my games into RPGgeek. Taking a glance shows the following systems:

Other Worlds
Conspiracy X (2nd ed - Eden)
Dungeon Crawl Classics (running Slumbering Tsar ... )
GURPS (1st / 3rd ed, running Harn ... )
Hard Nova II
Swords & Wizardry Complete (running A-1 Slave Pits ... )
Magic World
EABA v2
Fate Accelerated
Fate
Heroes & Other Worlds
Ancient Odysseys: Treasure Awaits!
The Morrow Projects 4th edition
Lords of Gossamer & Shadow
Arrows of Indra
High Fantasy (yes, the old one from the 70's)
Rolemaster 2nd ed

I do like a wide variety of rpgs and rpg-like games.

Quote from: Molotov;773861High Fantasy (yes, the old one from the 70's)

I had this game, but never played.  Looked good though.  How was playing it?

My last one was Ancient Odysseys

Quote from: RunningLaser;773872I had this game, but never played.  Looked good though.  How was playing it?

It was a one-shot, and surprisingly playable. The uber-chart that runs it looks like an eye-sore, but actually functions well.

Lets see if I remember them all

Home Brew fantasy - Based off a single d10. About 11 pages long with examples and magic system.

Homebrew Space - Based off 7th sea, somewhat modded - Mostly like Firefly in feel with a touch of Babylon 5 for the Psionics (Psicore mostly)

Amber - DRPG

Basic D&D 5th edition - PbP

Gamma world 4th edition

3.5 D&D

4th Edition D&D

Starter set D&D - not sure if that counts different than Basic

Think that covers it.

I've played nine of my *own* games - StarCluster 3, Blood Games II, OHMAS, In Harm's Way: Pigboats, In Harm's Way: Napoleonic Naval, In Harm's Way: Aces And Angels, Volant, Lowell Was Right! and High Strung - and let alone those of other designers! Your scale does not go high enough Zachary!

-clash

We've been playing Honor+Intrigue weekly for the past 2 years. Not quite ready for a break yet.

Mekton II
Moldvay Basic D&D, AD&D2e
Pathfinder
WHFRP3e
and I think there was a D&D4e session just in the time range specified.

So 5 different games, because all the classic D&Ds are the same thing in my gaming.

Two, Traveller (both classic and mongoose) and 5e.