These people are amazing! Such great customer service everytime I come in. I come in once a week…read morewith my two boys and they are always so kind and willing to spread the hobby of collecting cards. They have a small collection of pokemon singles but they legit will update prices on the spot to make sure their prices are up-to-date with TCG player. Additionally, they sell pokemon sealed at retail MSRP, not scalper prices. They are very kind and have a great store environment. Love coming here!

This store has the best selection of model paints in town, and the salesperson was happy to chat…read moreabout painting methods for minis. I learned a lot of new techniques and it was a lot of fun (was almost late back to work because I got distracted--totally worth it) The prices on their minis are fantastic; I wish they had more. I love the vibe of this place. I brought my kids back later; I bought minis and paints, and they bought Magic cards. We'll be back often.

After visiting the other location, I had to see what they had here. This location seems to have…read moremore retro and systems, but either location is worth checking out for any system you're interested in. Walking in, you hear familiar game music that plays in the background as you see gamers thrashing on arcade cabinets and talking about the latest console games. It's not just a store, it's a place for the gamer community to meet up, which is great. Game stores should have culture. They had more rarities in this store than the other store, which is saying something because both have great stock and impressive rarity. Collector's prices, but you should expect that at a game store this knowledgeable about games. They had three staff members when I was there and all were very friendly, helpful, and attentive. If you're at all interested in games, it's definitely worth checking out.

This place rips people off. They price their stuff off of ebay just so they can twist around their…read moreown high price on items.. they barley offer you jack for trade ins unless its actually valuable or rare then they scam you just to sell it for even more... their console return policy is garbage if they can't apparently replicate the flaw or problem with a used console at their store even if you show a photo or video of the purchased used console they will still beat around the bush just so they dont have to help you out. Nor do they do real cash back refunds on anything even if you buy a used system and its actually defective because they don't actually test or clean the systems they get in, they just half ass blow it out... they are scam artists in disguise fucking us over.... Like how can you tell me these people price a used xbox 360 controller for 35 bucks just a controller but then when someone brings in a whole used xbox 360 console with name brand controller and 500 gig HD to trade in they offer 33 dollars in store credit.. that people should say something what this bullshit company does not to mention they don't even actually try to refurbish anything or even at least replace thermal paste. They can literally hire some people that can do that separately from the actual business locations or even the back of their stores to ensure each used console will actually run properly or at least have a better return policy aka real cash back. But the owner won't have a refurbish group like that because he's to much of a cheap skate con man that hires unprofessional and inexperienced kids that handles games and electronics like Keith David holding a glass of warm milk it's absolutely hilarious.... Games ahoy will be exposed even more everywhere else.. to be continued

This store is a staple in the Denver area for game stores. The selection is remarkable. You can't…read morejust pop in this store. You need to really explore and see everything. The prices are okay and match what you will find elsewhere and online. You're really paying for the experience and selection here. I always make this tops on my game hunting list when I'm Colorado.

Best spot to find classic videogames, consoles, and accessories. The place is also good for…read morecollectors looking for solid deals. So if you're in the Boulder area or looking for a good nostalgic time, this is the place for you!

This store is awesome and my favorite go-to place for video game stuff. The owner/manager is super…read morekind and Imm always happy to see him. The game collection is outstanding; there's lots of retro games and consoles, and also new games and accessories for the lowest prices around. This place is the best. Honestly, get your video game stuff from here. It's amazing.

Small "hole in the wall" type store, but amazing selection and everyone was so friendly. Amazing…read morecollection of retro video gaming units on display (as well as. a lot of old school items for sale). Crazy Pokemon card collection of really whatever you are looking for. Highly recommend this spot for collectors.

I went to 1 of their stores & Mallory was so helpful in trying to find me what I need.read more

Weird vibe. When I entered they didn't seem too interested in helping. The entire time I felt I was…read moreviewed w distrust. Have a good selection of retro games. Prices for Pokemon cards were on the high side. Prices of singles were strict. No discounts. Doesn't matter if paying by cash or however much you bought. Just not a great experience. I would recommend this place if you are into retro games. But that's about it. In a dingy strip mall w shady people and felt unsafe.

I've been going to this store for about 11 years now, and have always had an enjoyable time there…read more The two owners/managers (Kevin and Jason) are great guys that you can tell got into the business because it's something they are passionate about- they love talking about sports memorabilia, board games, comics, and the trading games they carry. This translates into being able to learn about the products before purchase, but also picking up incidental knowledge to help protect things (I didn't realize that older 9-Card pages had an acid that could cause some yellowing on cards!). As a TCG and Board game player, that's the demographic I can speak to best. The board games are priced close to MSRP (with some changes based on the market). Sealed TCG stuff seems to follow the market as well, and most singles are priced fairly comparatively to online retailers. The prices can be higher than other merchants, but I've appreciated that Jason and Kevin are upfront in their pricing- they are transparent about the pricing being higher when they feel that something is being valued too low. The space is a little crowded, but that's because there is just so much product there- just last year I was buying Aliens toys from 1992! Sometimes it can feel like a little bit of a crunch, but most of the time there hasn't been an issue for me. At the end of the day, there's only so much that can vary from one shop like this to another. Just like any shop there's a good spread of new items, older items, and hidden gems. What sets Grand Slam apart is the people. You have owners who want to help you find what you're looking for, even if it means reaching out to another store. You have customers who love their respective fields, and want to help others break in and learn the world. Overall, you get a store that seems to be focused on the community first, and wants to build Northern Colorado into a hotbed of activity!

I was buying a card and he said I like your taste and gave it to me for free also organized and…read morereally nice

Came here to trade games and Donnie helped me and my friend and recommended a few new games aswell…read moreawesome experience Donnie gave us at this Location really recommend it

Met a friend up here today and WOW! This place has it all! Granted they Don't buy the big…read morecombiner robots but that's for comic book and toy figure stores. No big deal. They have just about everything for all popular game systems. My friend even introduced me to the vault where they house all the super rare pieces. The vault is so amazing I didn't even take any pictures! Overall, the store is well thought out with very knowledgeable staff and some really cool merch. I want to check out the other locations as now I'm on the hunt for different Amiibo's and what not!

Awesome store with very reasonable and competitive prices with an honest yet non-pushy owner. I…read morehave, and will keep, looking to this store for retro gaming things before looking at other places.

Friendly service and was berry knowledgeable about retro games and consoles. Made the experience…read morenice and smooth.​​

This place is totally crazy. They have so much stuff here, and the guy bought our old video games…read moreat a great price. He was pretty rad. His English was shaky, but we worked through it. He's got a scratch pad and knows how to talk price :) But seriously, you've gotta come here. There's so much crazy gaming stuff I've never seen in my life, and I'm 50 years old, so I've seen a lot of gaming stuff.

Huge selection! Rare games! No consoles and all or mostly used, but included stock of other things…read morethat were not just games! (Books, records, DVDs) work checking out if you are local!

The selection of games is great and on top of that the customer service was exactly what i needed…read moreat the time. No upselling, no additional questions, and most of all so many games to choose from. In the past few times when I called for a question phone was picked up within 2 rings. A great run store with a person who has knowledge about games! Prices will be a bit high for some of the classics but a store owner who knows what is what and the worth of those old memories.

The GameFactor store has an amazing selection of games and consoles! I walked in half hour before…read moreclosing and Bob was able to answer my questions and serve my nephew well by exchanging a game that his XBox was not able to download! Great place to buy and support.