First off is
Tremulous

This game is fantastic
Graphics- Quake 3 level GFX
Gameplay- Unique RTS/FPS Hybrid
Plot- None really Aliens vs. humans
Bad things- Gets boring after about 5 hours of gameplay for me
Second is
OpenArena

This game is pure multiplayer FPS
Graphics- Decent Quake 3 like GFX
Gameplay- Pure run and gun FPS
Plot- Absolutely None
Bad Things- I got nothing
Third is
Shoot Em'

Pure ASCII
Graphics- 3D ASCII!
Gameplay- It's pretty much a minigame but has online highscore tables
Plot- ASCII in 3D what can I say does it need a plot?
Bad Things- You are stationary and can only look around
Forth Fifth and Sixth is
The Marathon

For true and untrue Halo fans alike
Gameplay- Old School FPS action, Doom like, Online play included
Plot- This trilogy is the follow up to the Halo Series though it was made prior to
Bad Things- none, additionally it runs on PC, Mac and Linux
Seventh is
Gunbound

Gameplay- Strategy
Plot- No Clue
Bad Things-No Clue I have never played it
Eighth is
America's Army

Gameplay- "Realistic" FPS
Plot- It was made as a recruitment tool for gamers to join the army
Bad Things- My comp runs it very crappily
Ninth is
Gunz

Gameplay- 3PS
Plot- Shoot people
Bad Things- I installed it but could not get it to run
Tenth is
Rakion

Gameplay- MMORPG
Plot- No Clue
Bad Things- I dunno my friends like playing it
11th is
12 Sky

Gameplay- MMORPG
Plot- Three warring factions are at war
Bad Things- I participated in the Closed Beta so I suppose that the gameplay might of changed, but leveling was tedious and took forever and a day
12th is
War Rock

Gameplay- FPS with some RPG elements
Plot- War
Bad Things- No Clue
13th is
Maple Story

Gameplay- If SMB and WoW had a babt this is it
Plot- I dont think there is one
Bad Things- After it updated I wasnt able to log in as often, I will play this game again when I get a new comp
14th is
Passage

Gameplay- You walk around, it is very artistic
Plot- Your trip through life
Bad Things- none this is a cool short game
15th is
Sumotori Dreams
Gameplay- Funny Physics Game
Plot- None
Bad things- There isn't more games like this
16th is
fl0w

Play the game before it got ported to PS3
Gameplay- Arcade like
Plot- Micro organism stuff
Bad Things-none
17th is
Alex The Alligator 4

A must play platformer
Gameplay-Platformer
Plot- Save Your Woman from becoming a pair of boots
Bad Things- None
Because I have no racing games yet 18th is
GeneRally

Fun Racing Action
Gameplay- Racing
Plot- Race
Bad Things- The graphics are almost too minimal
Ninja 19th is
N

Crazy awesome and simple
Gameplay- Platformer
Plot- I dunno
Bad things- None, it's even heading to XBLA as N+
20th is
Super Mario War

Amazing Retro Multiplayer Action
Gameplay-Multiplayer Fighting Platformer
Plot- Kill your Mario Bros.
Bad Things- also has a DS port and that makes me jealous
21 is
Charles Barkley's Shut Up and Jam Gaiden

RPG+Basketball+Randomness
Gameplay: Final Fantasyish
Plot: Absolutely crazy amazing
Bad Things: RPG maker can often have bugs
22nd is
EOU

8-Bit MMORPG
Gameplay: Nethack, Ultima, and Diablo based
Plot: make a 8-Bit MMORPG
Bad Things: I got bored, mainly because not many people play it
Good Things: Small installation, Works on Many PCs, Free
23 is Gang Garrison 2
Quote:
Originally Posted by Rouru Sakai
|
24th is Recommended by Locke- Death Worm
Games Site
Number 25 is a favorite of mine
Hyper Solar System Plumber

It's a 2D atari/ms paint arcade style take on Super Mario Galaxy
It's simple, storyless and can be quite difficult
Site
Download it
For Windows
For Mac OS
For PSP
Number 26 is fun for the whole family
Free Rider 2

This Game is like a interactive linerider, you can play other peoples tracks and some are made with amazing detail. It features multiple vehicles and an intuitive track editor.
I reccomend these 2 track databases
http://trackmill.com/free-rider-2/
http://fr2db.fr/
27th is one I cant believe I have not added yet
Frets on Fire

Guitar Hero Esque game for PCers
There is a ridiculous number of songs for this game and it can be skinned to look like it's inspiration
IE:

I will link to the site but not any of the track sites because the tracks aren't 100% legal and some arent that great.
http://fretsonfire.sourceforge.net/
And by the way it is multiplatform, so if you are a mac or user looking at a zune forum right now because you lack valuable forms of entertainment, you can join in too!
I will update this later on of course