Today’s gaming deals: Pi Day sales, a Polygon-exclusive coupon code and discounted Switch accessories

Today is Pi Day — 3.14, aka the first three digits of pi — and retailers are celebrating this fake holiday with themed sales on electronics (and pizza). For the fourth year in a row, Microsoft is discounting several PCs by 31.4 percent and selling some laptops and Windows Mixed Reality headsets for $314. Newegg is discounting Raspberry Pi kits and other maker boards. Those are selling out fast, so the selection is limited.

This is your last call to pick up Surviving Mars, the new game from Tropico developer Haemimont, at a pre-order discount before its launch on Thursday. Pre-orders at Fanatical are already 15 percent off, and Fanatical is offering Polygon readers an additional 6 percent off Surviving Mars pre-orders. The standard edition is discounted down to $31.95 from $39.99. You can also get the First Colony edition with additional customization options for $59.92 (usually $74.99).

Hardware and Accessories

• Xbox One S 500 GB Console Gears of War & Halo Special Edition at Amazon for $299.99 (usually $379.99). It’s out of stock until March 17, but you can still order.
• Blast from the Past bundles at GameStop include a premium refurbished PS4 or Xbox One and up to three games and accessories. Bundles start at $209.
• Dell’s XPS 13, XPS 15, Alienware 15 and other Microsoft PCs are discounted 31.4 percent. This deal ends tonight, March 14, at midnight PT.
• Select Microsoft laptops and Mixed Reality headsets for $314 at the Microsoft Store (usually $349-$699).
• Raspberry Pi kits and other maker boards start at $74.99 at Newegg.
• AmazonBasics Xbox One Wired Controller at Amazon for $20.58 (usually $23.50).
• Special Edition PS4 DualShock Controller in Sunset Orange at eBay for $72.99 (usually $99.99).

Games

• Surviving Mars on PC pre-order at Fanatical for $31.95 with code POLYGON6 (usually $39.99).
• Super Mario Odyssey on Switch at Amazon for $48.99 (usually $59.99).
• Mario Kart 8 Deluxe on Switch at Amazon for $54 (usually $59.99).
• Skyrim on Switch at Amazon for $48.50 (usually $59.99).
• Assassin’s Creed Origins on PS4 at Amazon for $43.98 (usually $59.99).
• The Legend of Zelda: Breath of the Wild on Switch at Walmart for $44.99 (usually $59.99).
• Wolfenstein 2: The New Colossus Digital Deluxe Edition at the Microsoft Store for $40 (usually $79.99). This deal ends on March 20.
• Final Fantasy 15 Windows Edition on PC at Green Man Gaming for $39.99 (full discount taken at checkout — usually $49.99).
• Superhot on PC at Green Man Gaming for $14.99 (usually $24.99).
• Injustice 2 on PS4 at GameStop for $29.99 (usually $39.99).
• Far Cry 5 on PC pre-order at Green Man Gaming for $49.19 (usually $59.99).
• Far Cry 5 on PC is free when you buy a qualifying 1 TB or larger SSD from Samsung.

Miscellaneous

• Nintendo Switch Joy-Con Charging Dock at Amazon for $22.99 (usually $29.99).
• Nintendo Switch Nyko Power Shell Case at Amazon for $28.82 (usually $39.99).
• Select Marvel digital comics volumes are discounted to 99 cents at Amazon and Comixology.

Commerce Team Picks

• ThinkGeek just added some adorable faux-leather Baby Groot high tops to its collection of licensed footwear.
• I’ve been playing L.A. Noire on my Twitch channel and it’s super fun to talk out the cases in a group. You wouldn’t think of L.A. Noire as a party game, but it kinda works. It’s available on Switch at Walmart and Amazon for just $36.63 (usually $49.99).
• On The History of Fun podcast this week, Clayton Ashley gave an incredibly thorough overview of the history of Legos. Go listen to it and then, once you’re good and nostalgic, check out the Lego Store, which has some pretty cool new sets. Clayton called out the Lego Ideas line, which features sets suggested by fans. The newest is a Ship in a Bottle model.

Polygon Deals is a biweekly roundup of the best deals on the internet, curated by Vox Media’s commerce team, in collaboration with Polygon’s editorial team. You can submit deals to tips@polygon.com, follow us on Twitter @PolygonDeals and find more Deals here. All prices are reflective of time of publication and are updated periodically to account for changes.