In a new documentary about Warframe, the game’s developers discuss what they’ve learned about building a free-to-play multiplayer game over the years. It includes the story of how someone paying for a microtransaction 200 times helped them realize they’d accidentally created a slot machine.

A joke from years ago has been permanently etched into Warframe. Here’s why players are still faced with the Taylor Swift lyrics that lit up the billboard charts back in 2014 every time they grind for loot on Mars.

Last week I began playing Warframe, a video game about robot gymnasts who spend all their money on clothes. I blew up a few bad guys, then took one look at my extremely intimidating inventory screen and decided I needed help.

You can have a damn good time on the PS4 without spending a dime thanks to a number of free-to-play games populating the PSN store. Some of these free offerings rival what you’d expect out of a full-fledged $60 game, if not surpass them. Here are our picks for the most worthwhile F2P PS4 games.

The shooter MMO Warframe recently added fishing to the assortment of activities you can spend your life grinding through. The fish are big and beautifully weird and can be turned in for various rewards. They also like to warp space and time and render themselves immune or sometimes swim through solid rock.

Before there was Destiny there was Warframe. The two games share a lot of the same elements—lots of loot, ornate costumes, and sci-fi stories that make no sense—but Warframe has something Destiny doesn’t: amazing pets.

In the distant future of Warframe, you are a space ninja who has woken from a long slumber to find the solar system in disarray. Armed with a variety of exciting powers, you must fight an army of decaying clones, tech-minded science jerks, mutant freaks and other awesome enemies. The entire game is free to play, but…