Here's an indie that's been released and gets a lot of love and support from the devs:

Metal Drift

A FP futuristic vehicle game. Think of football with hovercars and big guns. This is a game that seems to be designed specifically for clan battles. Full dedis obviously though only 12 players support. A great game for clan wars though.

This one may completely unrelated to FPS, but if anyone loves Diablo and, more specifically, Titan's Quest, the devs that made Titan Quest formed themselves an indie group and are working on a post-apocalyptic fantasy ARPG like TQ.

Grim Dawn

This one is a perfect example of developers that got tired of the industry they were working in and formed an independent house. It's rather interesting to note that almost every single dev of Iron Lore formed this house after they were sacked following TQ's failure in sales and are now going at it again.

One more, this one using the engine iDtech3, the same engine the CoD titles use.

Overdose

This appears to be a TF2-style post-apocalyptic game. 64 players support, full moddable and best, totally free.

Networking
Because OverDose is focussed on online play, our networking code needs to be as polished as possible. Nothing hurts more than lagging out at the wrong time when it’s not your fault. Here are a few key features.

• Based on the well-proven id Tech 3 networking technology
• Up to 64 players supported
• LAN and Internet play
• Voice chat support
• Packet compression for reduced bandwidth usage
• Demo recording and playback support

File System
Creating a secure online game that still gives the nod to modders and mappers to add extra content to the game easily and safely, is no easy task. We feel we are more than up to the challenge.

• Add-ons and game modifications support
• Auto-downloading support (including HTTP/FTP redirects)
• Pure servers ensure all clients are using exactly the same game assets
• Compressed PK3 files allow easier distribution of patches and add-ons

Editing Wiki/SDK
Team Blur Games is committed to bring the best possible experience and tools to both the gamers and the staff working on its projects. That’s why every project we create we develop a full SDK with tutorials and explanations on everything from audio, texture, materials and map compiling. We also provide fully original and working tools for the artist to create his own media, such as model converters, map compilers, and font renderers. Each of these tools is a perfect way to work with the engine because it has been designed and created from scratch for work with OverDose, so you can guarantee 100% compatibility.

• Integrated entity, light, speaker, FX emitter, post-process, and reverb editors
• Real time in-game editing: what you see/hear is what you get
• User-friendly GUIs

This is very sweet, especially for a free game.

Very nice list! I need to get away from some of the blockbuster games and go back to the basics. Ehh, except for BC2, which I am addicted to.

An article I found discussing some of the best upcoming indies:

http://www.gamesquad.com/feature/rise-indies?page=0,0

Some of these look real good.

Very nice.

And now for something completely different.

Star Ruler

Star Ruler is a 4x Grand Strategy game in space. By itself it sounds to be a pretty good idea but when you start treading the list of feature you realize you're before something quite special.

* Key Features
o Vast, Procedurally Generated Galaxies
o Intricate Ship Design and Exciting Combat
o Unique Research System
o Easy to use interface, complex gameplay
o Engaging AI Opponents
o Extensive Modding Support
o Multiplayer: Co-Op, Team, and Free-for-all
o Original Soundtrack
o Much more to come!
* Vast, Procedurally Generated Galaxies
o Choose however many systems you desire; you are limited only by the speed of your cpu
o Rich, diverse, planets whose type, size, number of moons, and other characteristics vary
o Full 3D too much to handle? Flatten maps for ease of interaction
o Alter the Galaxy throughout the game with advanced technology
* Intricate Ship Design and Exciting Combat
o Massive ship battles fought in real-time with particle effects and directional damage
o Ships whose individual components can be compromised, destroyed, disabled, repaired, and renovated
o Ships depend on key components to keep functioning, and failures can lead to catastrophic explosions which can turn the tide of battle
o Add components that modify the behavior of connected components, such as added health from bulkheads, or faster firing from coolant systems
o Save and load your custom ships and settings to your profile for easy importation and exportation.
o Fully simulated newtonian physics
* Unique Research System
o Unique Web-Like Research system with unexpected discoveries around every turn
o Choose between a structured, static web, or a highly varied web each game
o Develop technologies that lead to different strategies, rather than simply better tools
* Easy to use interface, complex gameplay
o Govern your planets with a simple yet powerful interface to customize the behavior of your worlds
o Numerous easy-to-use interfaces which provide quick solutions to specific problems
o Customize the GUI via scripting; add new windows, or change pre-existing interface behavior
* Engaging AI Opponents
o Choose from various levels of difficulty, with optional 'cheating' AIs
o Watch for the AIs to attempt different strategies to defeat their opponents
o Counter their new ship designs, as they adapt their designs to counter your own
o Engage in complex diplomatic interaction with your opponents
* Extensive Modding Support
o Modify data files and scripts in any editor as simple as Notepad
o Use developer tools to create particle effects and configure imported models
o Smart use of AngelScript allows users to create entirely new gamemodes, gameplay, and online experiences
o All files from the base game are readily available to learn from
* Multiplayer: Co-Op, Team, and Free-for-all
o Play with as many competitors as your server can manage, with drop-in-drop-out compatibility
o Supports both internet and LAN play
o Dedicated Servers
o Standard server controls
o Seamless transitioning: Multiplayer games can be saved and then played in Singleplayer and then brought back up in Multiplayer
* Original Soundtrack
o Experience an all original soundtrack by Artem Bank
* Much more to come!
o As time goes on, more and more features, graphics updates, and so on will be added to Star Ruler. We won't be satisfied until we're the best in the genre

At $20 this seems to be a literal steal and this game may become something very, very special.