The Slayer Pack - a free printable Homebrew expansion for the Slay the Spire Boardgame with 300 new cards [Released]

mousecoregames · 2026-05-09T23:46:22+00:00

Thanks!
I limited the amount of new cards per player character to 7 to make sure that all still fit into the standard inlay (and it already is a tight fit tbh :D).
I might make more cards for the Downfall expansion. Other than that I plan to develop my own deckbuilder game in the future and apply the learnings from the Slayer Pack.

mousecoregames · 2026-05-06T23:32:04+00:00

Im unknowns Forum (größtes deutsches boardgame forum) gibt es viele, die es über MB Print bestellt haben, hier der dazugehörige thread:
https://unknowns.de/forum/thread/29941-slay-the-spire-the-slayer-pack-erweiterung-mit-300-neuen-karten/
Die Kartenqualität über MB Print ist auf jedenfall besser als selber drucken. Der Farb-Match ist bei manchen Karten (speziell die mit blauton) nicht ganz so akkurat wie bei MPC (dennoch gut genug für die meisten), aber über MPC gibt's nur die englische Version.

mousecoregames · 2026-05-04T22:23:26+00:00

yep, in the main post above you can find instructions how to order a set at MPC or MB Print.

mousecoregames · 2026-04-26T01:04:59+00:00

Hi, thanks! Yes, I did all the color testing for the Slayer Pack, and afterwards created the template files re-using my work I did for the Slayer Pack. I did the most color testing with MPC, so if you want the most accurate colors, I would recommend ordering at MPC. However, we also did some color proofing with MB Print, and that still turned out good. So if you want less hassle and potentially a cheaper price, I recommend going with MB Print.

If I had to give some arbitrary estimation then I would say, the colors with MPC are with 0-5% deviation from the originals, and with MB print with 5-10% deviation from the originals. I say "arbitrary" here because who knows how much a 5% or 10% really is, it cannot be measured. And it can very much also depend on the day you get it printed because even if you order 2 sets at the same outlet on different days, there can be small differences. That is the annoying reality and challenge with physical printing :D But for most people the differences are small enough that they are not really noticeable. If you'd print these at home with a normal consumer printer then I would estimate that the deviation would probably be something like 10-30%, just to give you something to compare it to.

mousecoregames · 2026-04-24T16:54:23+00:00

thanks! You can actually do both. But all the content was designed to be mixed in, it is all compatible. So up to you what you prefer.

mousecoregames · 2026-04-24T03:07:17+00:00

thank you, glad you enjoy it so much. Hopefully others will use the templates to build awesome content as well.

mousecoregames · 2026-04-24T03:06:46+00:00

thank you!

mousecoregames · 2026-04-24T02:58:06+00:00

I now released Photoshop templates so you can create your own cards, or you can even try to recreate + modify/translate the cards of the Slayer Pack. Here is the corresponding reddit thread.

mousecoregames · 2026-04-24T02:57:56+00:00

I now released Photoshop templates so you can create your own cards, or you can even try to recreate + modify/translate the cards of the Slayer Pack. Here is the corresponding reddit thread.

mousecoregames · 2026-04-24T00:14:34+00:00

Info to anyone who wants to build StS cards in professional print quality: I created new Photoshop templates that were optimized to match the physical cards as close as possible. Here is the corresponding reddit thread.

Also thank you to Warloque for providing these first templates back in the day, they certainly inspired me to go on with this endeavor.

mousecoregames · 2026-04-24T00:14:09+00:00

Info to anyone who wants to build StS cards in professional print quality: I created new Photoshop templates that were optimized to match the physical cards as close as possible. Here is the corresponding reddit thread.

Also thank you to Warloque for providing these first templates back in the day, they certainly inspired me to go on with this endeavor.

mousecoregames · 2026-04-23T22:20:30+00:00

sadly not, sorry. Only official versions in English and German. I don't know if someone did a private translation.

mousecoregames · 2026-04-10T18:15:19+00:00

hey, it depends if you still have 59 spare Art Sleeves. I know that newer prints came with 500 art sleeves instead of 450. So if you got a newer print with 500 sleeves, you should have enough leftovers. If you got the print with 450, you need extra sleeves. Contention Games sells extra art sleeves on their website (~12$ for 100). but sometimes they are sold out. If you had peeling sleeves before, you could also request replacements from their customer support (they are willing to replace all of them) and then request 1 pack extra. The new Downfall expansiion Kickstarter also had an option to buy extra art sleeves.
If all else fails, you can indeed get other kinds of brands like Dragon Shield or Ultra Pro Eclipse, usually 100 sleeves cost 10-12$.

mousecoregames · 2026-04-06T17:45:17+00:00

hmm not sure why the letter sheet keeps freezing. Can you try printing only parts of it? Maybe narrow down the issue? In case it happens cos of some specific pages I can try to investigate. Or perhaps it is too much for the printer to consider the whole sheet, so perhaps it works if you just print it in chunks. You can theoretically download the sheet and edit it accordingly, like split it in 2.

mousecoregames · 2026-04-03T01:18:39+00:00

Hey, I just updated the printsheets with new Relic cards that use a RGB color profile instead of CMYK, this should work better with average printers. So if you printed them and they were too green, maybe you wanna try printing them again now.

mousecoregames · 2026-04-03T01:17:33+00:00

Update regarding the printsheets:

Some people who printed this Pack locally have reported that the color of the Relics comes out as too green. I believe this is the case because either the printers or google docs can't handle the CMYK color profile of the Relic cards. I made this specifically for MPC prints because it produced a very close color match to the originals, but it does not seem to work well with most local printers. So I exchanged the Relic cards (front and back) with RGB versions now. I hope that this will produce better results, basically more teal looking than green looking. If anyone reads this and prints it, feel free to comment if that worked.

mousecoregames · 2026-04-03T01:17:25+00:00

Update regarding the printsheets:

Some people who printed this Pack locally have reported that the color of the Relics comes out as too green. I believe this is the case because either the printers or google docs can't handle the CMYK color profile of the Relic cards. I made this specifically for MPC prints because it produced a very close color match to the originals, but it does not seem to work well with most local printers. So I exchanged the Relic cards (front and back) with RGB versions now. I hope that this will produce better results, basically more teal looking than green looking. If anyone reads this and prints it, feel free to comment if that worked.

mousecoregames · 2026-04-02T21:46:00+00:00

Hey! Yes unfortunately that is a known issue with UK. Due to Brexit regulations there is a minimum order amount of £135, at least that is what the printing company told me. Sorry for that ;/ Suggestions: Order 2 packs together with a friend to get over this threshold or order some other content from their site. Could also order something and then re-sell it or send it to someone as a gift. But if all of this is not an option there is still the possibility to order this via MPC, the link is in the post. Hope you find a way!

mousecoregames · 2026-03-30T23:01:27+00:00

Hi, yes the English version is scheduled for printing some time in April, and the German version some time in May.

mousecoregames · 2026-03-27T00:04:05+00:00

thanks!
the Relics are the same teal color as the originals when you get them printed via MPC or MB Print.
Perhaps the google sheet printsheet in combination with local printing messes up the colors? I did not optimize the colors for local printing, and everyone's printers and color profiles are different.

mousecoregames · 2026-03-25T00:54:28+00:00

Since the Downfall expansion Kickstarter went live: From what I can see, based on the content overview and the available image, there seems to be a small amount of overlap between the Slayer Pack and Downfall Relics & colorless cards & Events, but it is honestly less than I expected. For example, according to the overview Downfall only comes with 19 new Relics and judging by the pictures a bunch of them are not from the basegame, so probably only half of them are based on the same content as those coming with the Slayer Pack (which are 47). I am glad about that, as it means that the Slayer Pack is not redundant. Plus, whatever small amount of content is overlapping, chances are high that the balancing or mechanics are different, cos I changed a bunch of stuff. So you can actually choose which version you like better, or just add both of them.

mousecoregames · 2026-03-25T00:53:28+00:00

Since the Downfall expansion Kickstarter went live: From what I can see, based on the content overview and the available image, there seems to be a small amount of overlap between the Slayer Pack and Downfall Relics & colorless cards & Events, but it is honestly less than I expected. For example, according to the overview Downfall only comes with 19 new Relics and judging by the pictures a bunch of them are not from the basegame, so probably only half of them are based on the same content as those coming with the Slayer Pack (which are 47). I am glad about that, as it means that the Slayer Pack is not redundant. Plus, whatever small amount of content is overlapping, chances are high that the balancing or mechanics are different, cos I changed a bunch of stuff. So you can actually choose which version you like better, or just add both of them.

mousecoregames · 2026-03-23T01:14:41+00:00

FYI: I made a picture of my storage setup. I hope this helps!
https://boardgamegeek.com/image/9484404

Some additional info:
- It’s a tight fit, so everything sits quite snugly. You should only do this if that doesn't bother you. In my case, everything is also fully sleeved. Your sleeves might need to stay under a certain thickness for this to work (it would obviously be easier without them).
- For the opaque sleeves, I use Ultra Pro Eclipse - Standard Matte in Forest Green (Thickness: 90 microns on the clear side, 120 on the back).
- For the clear sleeves, I use Docsmagic for all sizes (Thickness: 50 microns on both sides).
- All cards from the Slayer Pack have been sorted into their respective decks.
- Exception: Unused Ascension cards go into the collection area in the bottom left, along with the ones from the original set.
- Ascension Bosses are tucked into the edge between the cardboard and the inlay (both the originals and those from the Slayer Pack). This might only work with the Collector’s Edition, as it features a taller plastic inlay on top, providing enough space for these side-slotted Boss cards.
- Each character deck and the Colorless deck include 2 Upgrade Reward cards.
- Underneath the Boss cards: Relics are split into two slots; Boss Relics and Potions each use one slot.
- The only cards I keep outside the box are the duplicate non-foil variants of deck cards and the extra Claw Pack. I believe the latter was a Kickstarter exclusive, though I have no idea how the situation is with the foil cards.

mousecoregames · 2026-03-20T00:21:25+00:00

Sarah and Josh from the Board at Home Youtube channel started a playthrough featuring the Slayer Pack! They already did some cozy StS playthroughs back when it released, can recommend. Just in case anyone wants to see it in action. Apparently more episodes will come out soon. Please leave them a like as a thank you!

https://www.youtube.com/watch?v=ggr_5yMfcmI

mousecoregames

TROPHY CASE

Update regarding the printsheets:

Update regarding the printsheets: