For all those who play OGame.

[SIZE="6"] Combat Simulators [/SIZE]
 A simulator is a program used to determine the outcome of battle before it takes place, in essence the program simulates the battle. You enter in info such as: your opponents weapon, armor, and shielding technology levels and all of your opponents defense and ships. Then you enter in the ships that you are planning on sending and it will tell you what the most probable outcome would be.
SpeedSim
 An accurate and widely-used battle simulator. People use it to calculate if they are likely to win a battle before actually fighting it, how much resources they will plunder and how much debris there will be. SpeedSim is available as a file you download and run on your computer. It has the option to monitor clipboard, so if you copy an Espionage Report, it will automatically fill in the information about your opponents fleet, defence, position and resources.
Homepage: SpeedSim
 
DragoSim
 A tool similar to SpeedSim, but available online, not as a download. This has the advantage that you can use it when not playing OGame in your home, without the need to install software; all that is necessary is to browse to the website and fill in (or paste) the fleet sizes, technologies and resources. Additionally, the combat results sometimes vary between SpeedSim and DragoSim, so in some cases it may be advisable to check both.
Homepage: DragoSim

 RakSim (Interplanetary Missile Simulator)
 A tool used to evaluate the efficiency of Interplanetary Missiles. Works similarly to combat simulators - the user fill in the information about the opponents defence, both players technologies, the number of IPMs and ABMs, and the simulator gives the number of defence left. RakSim also has the option to calculate the number of missiles needed to destroy the defence given. The tool is available both online and as a download to use locally.
Homepage: RakSim
 
[SIZE="6"] OGame Report Processors [/SIZE]
 Ogame Report Processor (ORP)
 ORP allows users to store espionage and combat reports and data about players and alliances. The users first copy the solar systems containing the planets wish to scan and paste them into the program. This has to be done only once for each system, unless it changes. Then they can copy and paste espionage reports (the program supports pasting multiple reports at once); the planets will be stored in the programs database. (The newer versions support "clipboard watching", thanks to which a user only has to select a solar system/esp report/combat report in the browser, and the program does the rest of the processing.) The users can then sort the reports according to fleet size, resources, scanning date etc. and filter the reports according to the desired criteria. The program also has the function to store combat reports. The procedure is similar to the one used for espionage reports: users just copy a combat report and paste it into the program. The software is available as download, installed locally on the users computer.
Homepage: ORP

EspRep (Online Alliance Tool)
 EspRep is similar in nature to ORP/oSternenkarte, though not as mature. EspRep is available only online, via any web browser, and is based upon Alliance sharing espionage reports, Solar System dumps, rankings and other information.
EspRep can also assist in organising alliances through its Request system and Login Message.
ERU has setup an account for this service. PM him for login details.
Homepage: EspRep

Galaxytool (Enormous Online Alliance Tool) (you will need to have a website with PHP and MySQL support to use it)
allows players or alliances to create and manage an image of their universe.
With this tool they can get information which ogame does not give them directly. Requires a PHP and MYSQL webserver.
Homepage: Galaxy Tool

 
[SIZE="6"] CR Converters [/SIZE]
Takanas CR Converter
 The tool is similar DutchDemons but it is online and supports multi language CRs. The author is still working on it. You can send your suggestions to him. He is a really quick guy, he can easily fix bugs and add some new features. If you want to add new language support, mail him.
Homepage: Takanas CR Converter

DutchDemons CR Converter
The tool allows to convert Combat Reports from the plain form given by OGame to a form more readable on the forums, indenting entries and adding colours to ships and their numbers. The author of the tool writes that he "has lost interest in OGame". However, the tool is still available as a download.
Homepage: DutchDemons CR Converter

Hori CR Convertor
http://cr.hori.maori.nz/
 
[SIZE="6"] OGame Calculators [/SIZE]
OGame-Calculator
 A very simple to use tool designed to effortlessly compute the cost and time for litterally anything you need to spend resources on.
Homepage: OGame-Calculator
 
Takanas OGame Calculator
 Another useful OGame calculator. It gives more detailed information about your costs.
Homepage: Takanas OGame Calculator

Online Cost Calculator
Costs of all buildings, ships, researches, defense structures and the time that is needed to build them. You also can calculate the time it takes your fleet to arrive at the target with only a few clicks.
http://www.o-calc.com/


[SIZE="6"] Firefox Extensions[/SIZE]
Foxgame
A handy little extension for Firefox called FoxGame

QuoteFeatures:
[SIZE="1"]    * Automatic universe selector in login page.
    * Reduced galaxy view: Planet column is not rendered and its functinality is moved to Name col., debris header reduced also.
    * Private messages highlight: Background of private messages is changed so they can be seen clearly.
    * Extra delete options and spy report options: You can control messages from the top or the bottom.
    * Fleet arrival and return time: In fleet destiny selection page you will see the time when you fleet will arrive and come back to your planet.
    * Fleet retreat time: In fleet page you will see the time when your fleet will arrive if you order to come back.
    * Multilanguage support: es-ES(spanish), en-US(english), de-DE(deutsch), pl-PL(polish), fr-FR(french), nl-NL/nl-BR (dutch, some new strings still in english), it-IT (italian), bs-BA/cr-SR/hr-HR (bosnian, serbian, croatian), pt-PT/pt-BR(portugese) and tr-TR(Turkish) if your language is not supported and you want to translate it, mail me.
    * Almost all finishing hours: Research and buildings finishing hours, hangars qeue finishing time even you can see date/time in overview if you wish.
    * Highlight ally and private messages: Ally and private messages now have a diferent background to see them easily.
    * Highlight big debris fields: Debris fields bigger than you fix min will have different background in galaxy view.
    * Autochoose mision type: You can define mission priorities so FoxGame will select the mission according to that.
    * Milos integration: Milos is a web DB for ogame.com.es where you can send galaxy reports, foxgame help you adding new buttons to do it from O-Game.[/SIZE]

[SIZE="6"] Trade [/SIZE]
OMarket
 A tool designed for trading OGame resources in all OGame domains and universes.
Homepage: OMarket

Eagle Trade - Calculate trading values
A simple tool that can be used to calculate trading values for Ogame.
http://hans.imotion-software.com/eagle-trade/


[SIZE="6"] Websites[/SIZE]
OGame Tips, Strategies and news
http://www.ogametips.com/

Official OGame Forums
http://board.ogame.org/

In addition many alliances have their own forums, most of which have links on the alliances ingame "allypage". i.e.
Slavian Union (SU)
http://www.freewebs.com/slavianunion/