A game which is played by several players. The players may be working cooperatively or competitively (either against each other or the game).

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1
vote
1answer
301 views

Do “write once run anywhere” engines require platform specific code for multiplayer?

I've been investigating the myriad selection of mobile game dev engines that allow compilation of your code onto multiple target platforms, but, something I can't seem to figure out is if ...
4
votes
1answer
162 views

How to setup a client to work with a remote server or a local included server?

I'm working on a Networked multiplayer game, but while developing and for testing I want to set up a local server that acts like the multiplayer server. My thought is to approach the server as a ...
4
votes
2answers
557 views

Collision detection in pong style multiplayer network game

I've recently implemented an authoritative server (node.js with socket.io) for a multiplayer pong game. I've looked at client side prediction and fixing timesteps and starting to grasp the notion of ...
5
votes
2answers
764 views

Get timing correct with client side prediction

I believe I've got my head round CSP after reading Gabriel Gambetta's blog, Valve article and buildnewgames.com but having an issue understanding the time execution of everything. So if a player ...
1
vote
2answers
512 views

I would like to build a 2D multiplayer game. Do I need a game engine or not?

I plan to build a very basic 2D game in html5: it's purely a map divided in 2D equal square tiles. A player can click on a tile to see the message "behind" a tile. Once open, other players can't open ...
3
votes
1answer
737 views

How to structure (the code in) a multiplayer game

I'm working on a rather small project where we will be developing a small engine, a client, a server and an editor of some kind. It's a component-based 3D engine with basic systems like Rendering, ...
2
votes
1answer
564 views

Browser UDP Relay with TCP Websocket

I'm wondering if this is possible and what obstacles I might face. I have a game that's browser based, and since I can't send UDP packets from a browser, Can I use a plugin that the browser connects ...
2
votes
1answer
130 views

How do I manage multiplayer login?

How is the typical login, loading the level and spawning handled? For example: Client sends "iwanttologinwithcharacterx" Server does some validity checks and instantiates characterx Server sends ...
2
votes
2answers
364 views

PHP Browser Game Private Messages?

First off, I'm asking this question here because gaming and messaging are intimately connected. Why win if you can't gloat? Nevertheless, I won't be offended if this needs to be moved to overflow. ...
-2
votes
3answers
6k views

Writing a server for a multiplayer game

I've been looking on the internet, but I can't really find any good answers to all my questions.. I started to think about writing a little multiplayer game on my own and after thinking and thinking ...
0
votes
2answers
194 views

Practical Way to Store and Communicate Data for a Multiplayer Game Like This

I am working on my first multiplayer game, as I have become bored with my single player indie games. However, I have a question. Players will be placing items on a map which is arranged in a grid, ...
2
votes
1answer
956 views

iOS game integrated with Facebook - Random game

How could I implement a random game for iOS via Facebook. I registered my game with Facebook and done everything so far... Can Facebook do such a thing? EDIT I connected my app to Facebook, I can ...
1
vote
1answer
515 views

php multiplayer game - server&client model

I'm working on a simple round&web-based multiplayer game. The idea of the game is very simple: The players get an array of audio files which they listen to and write the transcripts for in 5 ...
2
votes
2answers
1k views

Sync clocks on a real time multiplayer game - Is this ok?

I'm developing a multiplayer game through Gamecenter in unity with prime31 plugin. This is how I sync the clocks of the two players (right now there will only be 2 player in one match), and I wanted ...
1
vote
1answer
282 views

When and where should I calculate collision response with multiplayer physics?

I've troubles wrapping my head around multiplayer physics and collisions on the client side, so far I interpolate the state of my network entities ( position and velocity ) of the other clients based ...
0
votes
1answer
145 views

Transmit map vs Transmit seed

Given a map created with procedural generation algorithms, should the server transmit the seed used to generate this map (so client must contain the same algorithm) or maybe send all the information?. ...
7
votes
1answer
535 views

Timestep in multiplayer game

I'm trying to wrap my brain around the concept of creating a server/client multiplayer experience. My problem is mainly related to timestep. Consider the following scenario: A client connects to ...
6
votes
2answers
356 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 ...
1
vote
2answers
608 views

Multiplayer game sdk for ios and android [closed]

I am working on a multiplayer game supporting Android and IOS. For IOS Game-Center seems promising. But its IOS only. OpenFeint could be a option, but now GREE has stopped supporting it. Is there ...
14
votes
2answers
2k views

How should multiplayer games handle authentication?

I've been lurking around to understand how an authentication system would work in games, but after many searches, it seems that working with ssl/certificates could be a little complicated for just a ...
207
votes
12answers
10k views

Is there an optimum set of colors for 10 players?

I need to identify 10 players with a unique color for each on the map. Is there an optimum set of 10 colors to use in this case? Every set I come up with has some colors too similar. Update: I was ...
1
vote
1answer
202 views

Handling increasing numbers of users (server)

For this post, we'll assume my game is multiplayer chess as it essentially requires the same functions. User logs in to the server and requests a game - the server provides a simple matching service ...
1
vote
0answers
87 views

Multiplayer approach for tablets on wi-fi (FPS/TPS)? Server authority, etc [closed]

Looking for some guidance or what has worked well for others in implementing a multiplayer FPS/TPS type game on tablets (probably just 2-6 players at a time). The main issue being that ...
3
votes
1answer
270 views

How to properly do weapon cool-down reload timer in multi-player laggy environment?

I want to handle weapon cool-down timers in a fair and predictable way on both client on server. Situation: Multiple clients connected to server, which is doing hit detection / physics Clients ...
2
votes
2answers
292 views

Zelda like multiplayer combat

I have in mind coding a multiplayer game with a similar combat to zelda's. Since i will use flash, i'm limited to use TCP. My question is, is this goal possible? It's not as fast-paced as some ...
7
votes
4answers
1k views

Multiplayer online game engine/pipeline

I am implementing online multiplayer game where client must be written in AS3 (Flash) to embed game into browser and server in C++ (abstract part of which is already written and used with other ...
2
votes
1answer
731 views

Scripting for a C#, multiplayer game

I have a multiplayer game written in C# and we've recently been creating a lot of content but have been looking for a way to give our entities customization logic that the designers can hook into. I ...
9
votes
2answers
1k views

Android real time multiplayer over LAN [closed]

I've developed several games for the android platform and now planning to create my first multiplayer game. What I have in mind is basically just a 2-player game witch you can play with 2 phones over ...
1
vote
1answer
434 views

Efficient existing rating system for multiplayer?

I would like to add a rating for online version of a board game. In this game there are many game rooms each normally having 3-4 people. So I expect that player's rating adjustments (RA) should ...
8
votes
3answers
399 views

How to prevent a hacked-server from spoofing a master server?

I wish to setup a room-based multilayer game model where players may host matches and serve as host (IE the server with authoritative power). I wish to host a master server which tracks player's ...
1
vote
0answers
97 views

How do I add multi-player to a Windows mobile game? [closed]

I have an XNA game on WP7.5 and I like to add a multi-player mode, but I really don't know what to do. At first, I tried it with WCF, but that was really slow for the game. Are there any other ...
3
votes
1answer
2k views

Google Cloud Messaging (GCM) for turn-based mobile multiplayer server?

I'm designing a multiplayer turn-based game for Android (over 3g). I'm thinking the clients will send data to a central server over a socket or http, and receive data via GCM push messaging. I'd like ...
2
votes
1answer
191 views

Does concurrency inherently introduce “randomness” into a game?

When a game is implemented with concurrency (as most games are), does this necessarily, by its very nature, introduce an element of randomness into the game that is outside of the players' control? ...
2
votes
0answers
62 views

Group Matchmaking [duplicate]

Consider different groups(1 or more players) queuing together, we want to make 2 opposing teams containing each the same amount of players while keeping the groups together. At the same time we want ...
-1
votes
1answer
228 views

Sending A Class Packet [closed]

How would I be able to send a class through the internet like this. class Player { public int Health; public Player Copy() { return this; } } And do this. SendPacket(new ...
21
votes
9answers
1k views

Techniques to prevent non-official clients in network gaming?

In multi-player network games, what techniques exist to try to ensure that users are connecting with the official client application, and not some hacked client app? I realise there is probably no ...
3
votes
2answers
220 views

Implementing a multilanguage AI contest platform

This is a followup to this question. To sum: I'm implementing an AI contest site, where each user may submit several AI implementations for different games. Think about Google AI Challenge but instead ...
4
votes
6answers
784 views

Developing an ELO like point system for a multiplayer gaming site

I'm currently working on a gaming site where users will submit virtual players for different games, like Chess, Nash, Backgammon, Go, etc. The idea is that users don't compete themselves, but through ...
12
votes
2answers
323 views

Are there tools for testing multiplayer code?

Are there reliable tools that can simulate real life-like network conditions e.g. networks with different bandwidth, different latencies, packet loss etc...?
1
vote
0answers
98 views

What are the disadvantages of client-side prediction?

There's lots of talk of server-side prediction, but I haven't seen a client-side alternative implemented anywhere. My game uses mouse-based movement, so it's easy to predict the player's location ...
2
votes
1answer
614 views

Better ways of handling the server for a Multiplayer Browser Based Game [closed]

I am looking to create a multiplayer browser based game, similar to tribal wars and such, and i'm trying to think of better ways of handling the server, for example when troops and buildings are ...
4
votes
2answers
621 views

A simple example of movement prediction

I've seen lots of examples of theory about the reason for client-side prediction, but I'm having a hard time converting it into code. I was wondering if someone knows of some specific examples that ...
2
votes
2answers
226 views

What sort of data should be sent for mouse-based movement in a multiplayer game?

I'm new to the Multiplayer Rodeo here so please bear with me... I am just getting started and I'm trying to figure out how to deal with movement. I've looked at the question Best way to implement ...
8
votes
4answers
380 views

How would I balance a multiplayer competitive game

I'm looking at my first foray into developing a game, and would love to know whether you guys have any thoughts on game balancing on limited multiplayer games. The game I have in mind involves a ...
5
votes
1answer
247 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 ...
2
votes
2answers
648 views

Game Database Connectivity Java

I'm developing a simple multi-player puzzle game in Java. Both players should be able to view the same game board on his own computer. Then, when one player makes an action in the game (ex. drags an ...
16
votes
6answers
1k views

Handling player logoff and logon in a persistent world without breaking immersion

One problem I've never seen fixed in any persistent online game is how to handle player logon and logoff without the characters just popping in and out of the world. My first thought is to simply ...
2
votes
2answers
3k views

How to build a turn-based multiplayer “real time” server

I want to build a TCG for mobile devices that is multiplayer over the web (not local wifi or bluetooth). As a player plays cards I want the second player to see what is being played in "real time" ...
1
vote
1answer
389 views

Simple (and fast) dices physics

I'm programming a throw of 5 dices in Actionscript 3 + AwayPhysics (BulletPhysics port). I had a lot of fun tweaking frictions, masses etc. and in the end I found best results with more physics ...
0
votes
1answer
381 views

Client/Server game even in solo: any big problem?

I'm making a game which have strong basic design based on multiplayer but also should provide a really interesting and self-sufficient solo game. A bit like a real-time strategy game. The events and ...