The parent computer responsible for handling interactions with multiple client connections, as generally encountered with online games.

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24
votes
6answers
3k views

Who does the AI calculations in an MMO?

I am building an MMO and want to add NPCs. The thing is I don't know the basic design. What does the calculations, the clients or the server? I would understand the server calculating events and ...
20
votes
5answers
4k views

Game logic on the server! Good or bad?

I'm currently planning a simple online multiplayer game. And here is the question. Does it make sense to make the whole game logic on the server and just send the input from the client to the server? ...
19
votes
5answers
9k views

Is C# viable for a real-time game server? [closed]

Most of the question is in the title. Basically, I'm starting to develop a 2D multiplayer action game. The client is (probably) going to be in XNA, and I thought I'd ask here about whether it's a ...
19
votes
7answers
13k views

What languages are used to develop MMORPGs like EVE Online and WOW?

As I understand it, MMORPGs are games that run on your computer like any other normal 3d video game but, with each action that happens with in the game, changes are made to the universe via HTTP calls ...
18
votes
4answers
4k views

Should collision detection be done server-side or cooperatively between client/server?

I am working on an online game that will have very heavy collision detection processing. Player models will collide with other players, mobs, structures, terrain, and solid objects that only exist ...
17
votes
6answers
979 views

What options do I have for game hosting

DISCLAIMER: I know this question starts to leave development island but it is very game development related and still think this is the best place. I see many free MMOs/online desktop client games ...
13
votes
3answers
2k views

Should I keep login server apart from game server?

I'm thinking of making a MMO server, and I've been looking at how other games structure their network. One of the things I've noticed is that there's always a Login server and then the game server(s). ...
13
votes
1answer
546 views

Is there a turn-based game service (like GKTurnBasedMatch on iOS) for desktops?

Game Center's GKTurnBasedMatch seems to provide a pretty robust service for handling turn-based games, and OpenFeint appears to have something similar. The problem is, I'd like something like this for ...
12
votes
3answers
1k views

How do I efficiently code both the client and server at the same time?

I'm coding my game using a client-server model. When playing on singleplayer, the game starts a local server, and interacts with it just like a remote server (multiplayer). I have done this to avoid ...
12
votes
4answers
957 views

Game log format for MMO servers

A log of game events (as opposed to error / debug logs) for an entire cluster/shard is very useful for a commercial MMO that is in a live production environment, providing vital support for customer ...
11
votes
2answers
755 views

Stress testing a game server without users?

I'm working on a card game and its server. There will be a lobby with many tables and many players. The only issue is, how can I see how it might handle 100's of concurrent users without hundreds of ...
11
votes
2answers
653 views

how to check if a gameserver can handle clients before game release?

we are developing an iOS-based game with multiplayer support. so far everything seems real good but now we want to make sure if server could handle 10000 clients or not. any idea how can I make sure ...
11
votes
3answers
971 views

Turn-based board game server references? [closed]

Are there any good references/books to recommend about how to build a turn-base game server? It's something like a chess server for pairing chess players and keep game states. In the past, for example ...
10
votes
1answer
1k views

Game engine design: Multiplayer and listen servers

My game engine right now consists of a working singleplayer part. I'm now starting to think about how to do the multiplayer part. I have found out that many games actually don't have a real ...
10
votes
3answers
2k views

Is there a pattern for writing a turn-based server communicating with n clients over sockets?

I'm working on a generic game server that manages games for an arbitrary number of TCP socket-networked clients playing a game. I have a 'design' hacked together with duct-tape that is working, but ...
9
votes
5answers
2k views

Distributed C++ game server which use database

My C++ turn-based game server (which uses database) does not stand against current average amount of clients (players), so I want to expand it to multiple (more then one) amount of computers and ...
9
votes
2answers
3k views

What's the best server architecture for real-time games?

I'm developing a Real-Time game which should hold thousands of players in real-time (FPS like. max 1s lag). What would be the best infrastructure for this? My idea was using 2 server clusters - one ...
8
votes
9answers
2k views

MMOs based on .Net? [closed]

Are there any real MMOs where the server engine is based on .Net?
8
votes
2answers
2k views

Would using Lua scripts to define game logic for an MMO server be a lot slower than compiled in C++?

I am using an entity system for my MMO server and I was thinking about defining the behavior of "actions" using Lua scripts. The server is written in C++. I am not very familiar with the speed/memory ...
8
votes
1answer
482 views

How should a team share/store game content during development?

Other than Dropbox, what out there has been especially useful for storing and sharing game content like images during development (similar feature set to Dropbox like working offline, automatic ...
8
votes
6answers
3k views

Which server platform to choose

I'm going to write a server for an online multiplayer with these requirements: Pretty simple turn based game (think a card game) that is played entirely on the server (security reasons) Must be able ...
8
votes
3answers
4k views

Game server for an android/iOS turn-based board-game

I am currently programming an iPhone game and I would like to create an online multiplayer mode. In the future, this app will be port to Android devices, so I was wondering how to create the ...
8
votes
2answers
4k views

How to structure a simple game server for a multiplayer game?

I would like to create a simple multiplayer game server for a simple game: The game is supposed to be similar to Command & Conquer, you have a few tanks and a few soldiers. You can select one ...
8
votes
2answers
19k views

How does the 3G network assign IP to smartphones?

I am playing a game on the 3G network using Android or Iphone. Suppose I am moving from one cell to another; Will the IP Address change? If yes, then how can I continue the same game while changing ...
8
votes
2answers
3k views

Information on seamless MMO server architecture

I'm looking for any material on seamless MMO servers! I do have a few articles in the "Massively Multiplayer Game Development" books and "Game Programming Gems 5." Has anyone experience on that topic ...
8
votes
2answers
884 views

How to manage all the NPC/AI objects on the server?

I'm writing a simple MMO, and currently have the the server-client architecture in place for multiple users to see each other and be able to move around together...now its time to add enemies. Was ...
8
votes
1answer
913 views

what should the size of a flash game in Facebook be

I'm developing a flash game and i want to put it in Facebook ,My question is the Proper maximum size for it. 500 KB 1 MB ??
8
votes
2answers
906 views

What is involved with writing a lobby server?

So I'm writing a Chess matchmaking system based on a Lobby view with gaming rooms, general chat etc. So far I have a working prototype but I have big doubts regarding some things I did with the ...
7
votes
1answer
1k views

MMO Collision detection

I am building a MMO game server for a 2D game and am currently implementing the collision detection, and I am would like to know what I should do. Lets say I have 1000 players playing and 10,000 ...
7
votes
2answers
3k views

Server side game loop

Many java games use thread.sleep() to controll fps. Since the server does not display graphics, should the server game loop keep running just calculating delta time? Like this example: long ...
7
votes
2answers
675 views

How to split login and game logic when writing servers?

I'm building a poker like game server, I was going to have all logins and game logic to be handled on one server, but from my research on the web, I learn that this would not scale, and it would make ...
6
votes
2answers
352 views

How can I debug live multiplayer servers effectively?

I have a multiplayer server made by a small team of developers and we have bugs that crop up on our live server occasionally that we simply can't reproduce while playing with our small team on a live ...
6
votes
2answers
3k views

MMORPG server-side java architecture

I am currently making a MMORPG game, which is turn-based. The client is supposed to run on Android. Now, my friend is doing the graphics, and I have been doing the game classes (player, weaponry, ...
6
votes
3answers
4k views

Synchronizing clients with a server and with each other

What is the best way for keeping all clients synchronized with a server and with each other? Currently, we have two approaches in mind: When a client sends something to the server, the server ...
6
votes
4answers
746 views

Profiling server side game loop in java

I am looking for tips to profile the server side game loop of a Java program for CPU usage. I tried to use the TPTP plugin for Eclipse so far. The problem I am having is that it is really slow. For ...
6
votes
1answer
547 views

MMORPG game map in-memory storage techniques

For 2-3 years I've been interested into MMO development. I'm browsing some emulators source codes and open source projects. Usually I'm checking how the game server stores data about the 2D map. ...
6
votes
2answers
215 views

What are useful server metrics to gather for a table card game? [closed]

When building a game server intended to accomodate large numbers of simultanous games (e.g. table card games), where the server manages lots of tables and each table has up to a small handful of ...
6
votes
2answers
636 views

Using Google App Engine to Perform World Updates vs an Authoritative Server

I am considering different game server architectures that use GAE. The types of games I am considering are turn-based where the world status would need to be updated about once per minute. I am ...
6
votes
2answers
432 views

Scalability of multi-threading in game server

What is a reasonable number of threads for a simple 2D mmo in Java? Is it reasonable to have two threads per connection, one for the input stream and one for the output stream? The reason I ask is ...
5
votes
3answers
1k views

Writing a minimalistic server for vanilla WoW [closed]

This is about a personal project I've been longing to do for some time now. Since a while now I have stopped playing WoW, but as I'm quite experienced in C++ I thought I'd try the following: Write a ...
5
votes
2answers
515 views

Which protocol should I use for a networked Pong clone?

I have to design a Pong game for Android. There are multiple mobiles and a game server. Application is installed in mobile. Mobile 1 (M1) can see the movement of bat and ball of mobile 2 (M2) an ...
5
votes
1answer
245 views

Has anyone tried using one of those BAAS providers to create mobile games?

I'm hearing a lot about different companies offering back-end as a service (BAAS) for mobile apps but it seems like none of them are very successful with mobile games. Is there any reason why not ...
5
votes
3answers
458 views

What freeware frameworks and tools to choose if I want to build a game like Farmville or Club Penguin? [closed]

Say I like to experiment with multiplayer games and I do not want to reinvent the wheel and build yet another game server. I don’t mind configuring and writing wrappers and adapters (both in c++ and ...
5
votes
4answers
569 views

Tile-based multiplayer game: server and client load

I'm developing a multiplayer tile-based game (imagine habbo) and having some trouble with the movement. The idea is to click on a tile (target tile) so your avatar moves there and everyone can see you ...
5
votes
1answer
847 views

How often should multiplayer games communicate with the server?

I once heard that Runescape "ticks" every 0.3s, and that seemed like a very long period of time, although Runescape is kind of a slow game. I'm building a more dynamic top-down shooter game, and I'm ...
5
votes
1answer
537 views

Splitting up duties for a card game server

I'm working on a game where players connect to a game server and to a lobby to play a card game against others. I have a pretty good idea how to code it and such, I'm just not sure regarding a few ...
5
votes
1answer
282 views

Existing master server software?

Considering there are many games out there that use some sort of a server that contains a list of current games/servers, is there an existing library I can use instead of writing my own master server? ...
5
votes
1answer
608 views

Help for choosing a cost effective game server for Flash client

I am developing a flash-based game primarily for desktops, to be hosted on facebook platform (like cityville, sims social etc). The gameplay doesn't involve real-time communication between players ...
5
votes
1answer
295 views

Automatch / queueing players

I'm using Node.js and Redis. I'm trying to come up with a reliable way to automatch players. There is a matching server and then multiple game servers set up. The following is what I need to have ...
4
votes
6answers
1k views

How to hide a MMORPG backend server from the internet?

I want to create a network where the main servers IP is never exposed to the client. By going throught tunnels. Here is a sample: http://dl.dropbox.com/u/12304631/eliteots/mc/network.jpg Problem ...