Production Budget for a small pc game

Guys, how much would the productrion budget for a small pc game with 4 to 5 hours of gameplay using an open source engine come up to? very simple game not that heavy, no special graphics and super realistic physics and all that, cld u gimmi a rough estimate assuming this is going to be a simple game for a 12 year old. Thanks.

I'm an aspiring game artist doing my game art course at the asian institute of animation and gaming (www.aiga.in) and i need to give a presentation on my game concept.

hmm, but this game would be competing with other games, for eg. i need to pitch this idea to a publisher and ask him to fund my game, i have a team of lets say about 20 guys... any estiamate?

Module name: Game Creation and Technicalities Assignment date: Thu 5th Nov 2009 Submission date: Final submission on Fri 20th Nov 2009 2 pm. Presentation on Fri 20th Nov 2009, starting 5.30 pm. Assignment name: Game Concept and Proposal Assignment Details: Creatively think of a Game Concept and prepare a proposal for publishing. The Game concept and proposal needs to be thoughtfully developed keeping all aspects on game development and publishing in mind. The proposal presented should exhibit supporting data, research and analysis of the target audience, platform and similar games that exist in the market. Please ensure that your game proposal covers the following aspects. Game idea, overview, USP, Target audience, Platform, Key Design elements, Gameplay, Concept Art/Storyboard, Development Estimate and Plan, Comparison to similar games, Market Research, Key points for success of your game. The target audience for your game concept is children between 6 to 12 years of age. Details on the submission files and presentation below. Presentation, ideally not exceeding 15 slides. Presentation duration, max 10 mins. Q&A session by peers and faculty. Game Concept image/s. Relevant supporting files and references exhibiting research undertaken on the topic. HuFlungPoo

This would be the assignment details