While we work on a response, there are also some details that we would be most obliged to hear from your side:
How many stores does your chain include? In what countries? How large are they (e.g. in terms of sales floor area?)
Do you also sell online?
What initial quantity of games would you consider purchasing?
How many units would you expect to sell per month? Per year?
What point-of-sale materials would you find useful for promoting the games? Could you provide us with some examples of material you currently have on display?