
The full collection of flash games produced by Undefined, standalone and wrapped in a fancy front-end. Enjoy classic games from Flash gaming history such as the Protector series or the Arkandian Legends series, as well as some lesser-known games you may never have tried.
Modeled estimate, not a reported figure. How we estimate →
Media

About
Every Flash game produced by Undefined
Back in early 2008 as a solo indie developer, I started producing flash games under the name Undefined. Over the subsequent years until the death of flash player I published 22 different free-to-play games, many of which were highly popular. Mostly as an answer to requests but also as a vanity project, I'm happy to present the entire collection.
If you remember any, it's most likely that it's one of the most popular game series, such as Protector or Legends of Arkandia, but, did you ever play the others?
With the advent of Ruffle, a new open-source flash player, I'm now able to bring those old games back to life and provide a standalone version of them.
Lots of work has gone into making sure each game runs at an acceptable level. There will be quirks, and sometimes things won't be exactly as they should be, but I have personally played every game in the pack and am happy with how they look and feel. The gameplay has been left mostly untouched, except where there were obvious bugs, which have been fixed.
I hope you enjoy playing this classic little slice of my brain, I've enjoyed putting the pack together and remember fondly creating each and every one.
This is where it all began. Back in 2008, tower defense was a simpler genre—Protector was my early attempt to mix tower defense with RPG depth. Over time, the series evolved, introducing faction rep, hero-specific units, equipment, skills, and even collectible Protectormons.
Protector
Protector II
Protector III
Protector IV
Protector IV.V
Here, the focus shifts to a sim-life experience. You manage your hero’s life—balance work, school, and the occasional dungeon crawl as you shape their destiny.
My Pet Protector
My Pet Protector II
My Pet Protector III
An evolution of the My Pet adventures, the Legends games refine the classic RPG formula with quirky, inventive gameplay. Expect unexpected twists that prove even old Flash games can break the mold.
Arkandian Crusade
Arkandian Revenant
Arkandian Explorer
These titles might not follow the series format, but they’re every bit as creative and fun. Each game has its own identity - a mix of experimental ideas, inventive mechanics. Whether you’re in the mood for bite-sized challenges or something off the beaten track, you’re in for a treat:
Little Protectors – Mini Protector, 2d and includes several new ideas, some of which are good, some I hold my hands up and admit, not so good.
Hordes of Hordes – Another tower defense game, but one with a bunch of new ideas compared to Protector gameplay, such as dynamic pathing and endless gameplay.
Engage – A space strategy epic that spans 100s of levels.
Cardian – A card-based twist on classic gameplay elements.
Dead of Night – The very first Undefined game, it's still worth a few minutes of time.
Condor Cowboys – No comment.
Quick Quests – Heroic RPG goodness in 5-minute bursts.
Token Hero – Grid-based gem matching, but with its own rules and some RPG gameplay to boot. This was the last game I produced and includes a fitting tribute to my old best friend.
Elements of Arkandia – Puzzle quest, but with some Undefined magic and style.
Little Protector Planes – Session-based gameplay, pre-popularity of session-based gameplay. Explore infinite planes and recover treasures and powers from each one.
UO Defender - The prototype for Protecter, this small game was produced as a fan game for the game Ultima Online way back in 2006 before I really began producing games proper.
I've tested each game on the Deck and the majority run very well, some work is still needed for some games to improve performance, but overall, the experience is great. If you're having problems with a specific game, sometimes switching to Proton Experimental can improve performance.
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Engagement
Hours played at review time, across 36 reviews with recorded playtime.
Reviews
I loved Protector back in the day. I'll cherish this pack forever.
I got this for the Arkandian Legends trilogy from my youth, which I have fond memories of. However, I can't seem to set a name for my character, which defaults to Undefined. It turns out this is has been a known bug for months, and hasn't been actioned since this came out. And that's pretty poor, in my opinion. I can't recommend a game that is so badly cared for that even bare basics can't be patched. Wait for a sale.
A step back in time to my younger days where flash games were so common and popular. Glad to see these ones published as the Protector games were always one of the best tower defense flash games. Didn't realize how many other games the developer made too so should be fun to check out all the rest. Definitely recommend if you have fond memories of these games. Glad to support the dev and curious to see if anything more comes out, if not, this is definitely more content than $10 will get you for many other games and I think it'll be some time before I play through everything.
thanks so much for all your time mah ol childhood frend, hope my little aport helps u back
Yes! Only the protector series worth the price, the time, everything! And comes with a lot of good games of the same dev, try it! I have been waiting for these years, this was the flash game i played the most when i was a child, it has the protector series, wich is in my opinion the best tower defense i ever played, and now i can say thanks to the dev who gave me hundred hours of fun and play all the other games what come's in the pack, its totally worth the buy, and pls, if you read this, buy this in steam, dont buy the key in other web, this dev deserves that
Finally! I can play these gems again. I play UO, so its good to see UO defender back in action. Thanks for putting this together.
I went to look for where I could play the old Protector series , boy was I happy when I found out you could buy the whole collection. Thank you for making this available.
Just as fun as I remember it all being!
Such a fun game pack. The music for Protector TD brings me back. Glad that you decided to release this!
Yo se que algún día saldrás Protector V.
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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