As an Amazon Associate I earn from qualifying purchases and sometimes recommend products from other sellers at no extra cost you. For more details see my disclosure policy and privacy policy.
May and June always feel like the hobby’s exhale after a busy spring convention season — and 2026 is no exception. This month’s watchlist skews heavily toward expansions for established systems, with a handful of new titles worth keeping an eye on. From a campaign deck that could transform your Hero Realms setup to a survival game adaptation that has been generating real buzz, there’s plenty here for strategy players with a backlog and a wishlist.
Here’s your at-a-glance summary of what’s landing on shelves this month, followed by a deeper look at the releases worth your attention.
| Game | Type | Publisher | Players | Est. Play Time | Status |
|---|---|---|---|---|---|
| Hero Realms: Watery Grave Campaign Deck | Expansion | Wise Wizard Games | 2–4 | 20–45 min | Est. May 2026 |
| Age of Steam Deluxe: Expansion Volume III | Expansion | Eagle-Gryphon Games | 1–6 | Varies | Est. May 2026 |
| Age of Steam Deluxe: Expansion Volume IV | Expansion | Eagle-Gryphon Games | 1–6 | Varies | Est. May 2026 |
| Western Legends: Building Miniatures | Accessory | Kolossal Games | 2–6 | 90–180 min | Confirmed May 2026 |
| The Lord of the Rings: The Card Game – The Dark of Mirkwood | Expansion | Fantasy Flight Games | 1–2 | 30–90 min | Est. May 2026 |
| The Lord of the Rings: The Card Game – The Dream-chaser Campaign | Expansion | Fantasy Flight Games | 1–2 | 30–90 min | Est. May 2026 |
| Earthborne Rangers: Spire in Bloom Valley | Expansion | Earthborne Games | 1–4 | 60–120 min | Est. May 2026 |
| Valheim: The Board Game | New Game | MOOD Publishing | TBC | TBC | Est. June 2026 |
| The Last Spell: The Board Game | New Game | Mythic Games | TBC | TBC | Est. June 2026 |
| Catan: Treasures, Dragons & Adventurers | Expansion | CATAN GmbH / Asmodee | 3–4 | 60–120 min | Est. June 2026 |
| Deep Rock Galactic: Shockwyrm Mini Expansion | Expansion | MOOD Publishing | 1–4 | 60–120 min | Est. June 2026 |
| Unmatched: Stars and Stripes | Expansion | Restoration Games | 2–4 | 20–40 min | Est. June 2026 |
| Star Realms: Colony Wars | Expansion | Wise Wizard Games | 2–6 | 20 min | Est. June 2026 |
| Hero Realms: Adventure Deck – Fighter | Expansion | Wise Wizard Games | 2–4 | 20–45 min | Est. June 2026 |
| Detective: Heists & Heartbreak | Expansion | Portal Games | 1–5 | 60–120 min | Est. June 2026 |
Note: Many of these are retailer-estimated dates rather than confirmed street dates. Expect some slippage, particularly on June titles.
May 2026: What to Watch
May 2026 is primarily an expansion month, which is good news if you’re already invested in any of these systems. The new content is genuinely worthwhile, not just a cash-grab reprint, which makes the month feel more generous than the headline count suggests.
Hero Realms: Watery Grave Campaign Deck
If you play Hero Realms and haven’t dipped into the campaign side of the game yet, the Watery Grave Campaign Deck is a solid reason to start. Wise Wizard Games has built a reputation for campaign content that actually shifts the way you approach deck construction, rather than just bolting on a narrative layer over the standard experience.
This expansion works within the existing fantasy deck-builder framework, so if you already understand how deck-building games work as a category, you’ll slot right in. The 2–4 player range and 20–45 minute run time also make it one of the more accessible campaign structures in the hobby — you don’t need to dedicate an entire Saturday to get something meaningful done. If you enjoy the lighter-weight card economy of Hero Realms compared to something like Dominion, this expansion should feel like a natural extension.
Age of Steam Deluxe: Expansion Volumes III and IV
Martin Wallace’s Age of Steam is one of those games that rewards obsessive ownership of its map packs, and Eagle-Gryphon is delivering two more volumes this month. Each adds new routes, new board states, and new logistical puzzles to solve — which is exactly what you want from a route-builder of this pedigree.
Volumes III and IV land simultaneously, which is either a blessing or a decision that will damage your wallet in both directions at once. For players already deep into the Deluxe edition, these are a fairly obvious pick-up. For anyone new to Age of Steam who enjoys area control and economic strategy, the base game is worth understanding before layering in expansion content.
The Lord of the Rings: The Card Game — May Content
Fantasy Flight is pushing out two pieces of LotR: The Card Game content in May — The Dark of Mirkwood small-box expansion and The Dream-chaser Campaign Expansion. This LCG has been running long enough that the question for most players isn’t whether it’s good (it is), but whether the new content hits the right difficulty curve for their group.
The Dark of Mirkwood gives you a contained new scenario to drop into existing play, while Dream-chaser continues the longer campaign arc. If you enjoy cooperative card games and haven’t investigated the Lord of the Rings LCG, it’s one of the stronger solo and co-op gaming options in the hobby — the 1–2 player structure is particularly well-suited to solo play.
Earthborne Rangers: Spire in Bloom Valley
Earthborne Rangers is a cooperative adventure card game that doesn’t get nearly enough attention in the strategy community. The base game rewards careful resource management and route planning across its campaign, and Spire in Bloom Valley adds a new region with fresh environmental mechanics to work around.
For players who like games where the board state tells a story through emergent challenge rather than scripted narrative, Earthborne Rangers plays in a very interesting space. The 1–4 player range and 60–120 minute sessions put it squarely alongside other cooperative favourites — though it’s considerably more mechanically demanding than most co-ops at that player count.
Western Legends: Building Miniatures
The one confirmed May release in the bunch is a miniatures upgrade set for Western Legends. This is firmly in the category of “for existing fans only” — it doesn’t change how the game plays, but adds physical texture to the open-world Western experience that some players find genuinely adds to immersion. Western Legends already plays well with groups of 2–6, and if you’ve been looking for a reason to get it back to the table, a visual upgrade pass isn’t a bad prompt.
June 2026: Looking Ahead
June’s slate has a stronger showing of new titles, with two video game adaptations that will draw plenty of attention, plus a handful of expansions that serve very different audiences.
Valheim: The Board Game
Valheim: The Board Game from MOOD Publishing is the June release with the most eyes on it. The video game’s loop — survival, crafting, base-building, progressing through escalating boss fights — translates reasonably well to a co-op board game structure on paper, and MOOD has form with this kind of adaptation.
The appeal for strategy players is obvious: Valheim’s loop is built on resource efficiency and threat prioritisation, which are exactly the kind of decisions that make for interesting tabletop play. Full details are still thin this far from the estimated release window, but if you enjoy cooperative games where the group is working against a shared escalating threat rather than each other, this one is worth monitoring. It scratches a similar itch to cooperative thematic experiences without quite as heavy an investment as something like Gloomhaven.
The Last Spell: The Board Game
The Last Spell is another video game adaptation, this time from Mythic Games, based on the tactics-and-defence title of the same name. The source material is a turn-based strategy game with tower defence elements and a horde mechanic — which suggests the board game version should offer some interesting wave-based threat management.
Mythic has a track record with heavier tactical games, so expectations are reasonable. Full mechanical details haven’t been confirmed ahead of the estimated June release, but players who enjoy games where you’re managing a fixed perimeter against escalating pressure will want to watch this one closely.
Catan: Treasures, Dragons & Adventurers
Catan expansions are always a slightly tricky subject. The base game’s audience is enormous, but the strategy gaming community is often lukewarm on what the expansions actually add to the decision space. Treasures, Dragons & Adventurers looks to add more event-driven variability and adventure elements to the Catan framework, which could either feel like welcome chaos or frustrating randomness depending on your group’s preferences.
If your table’s relationship with Catan is already complicated, this isn’t the expansion that will fix that. But if you’re a Catan household looking for something to reinvigorate your sessions, the additional event layer at least shifts the play pattern. We covered Catan’s strategic fundamentals in more depth in our area control guide — the expansion doesn’t change those fundamentals, but it does create more reactive moments within them.
Deep Rock Galactic: Shockwyrm Mini Expansion
Deep Rock Galactic: The Board Game has built a devoted following among cooperative strategy players, and the Shockwyrm Mini Expansion keeps that momentum going. Mini expansions like this one tend to be low-risk additions — they bring a new threat type or mechanic to the table without disrupting the underlying game’s balance, and Shockwyrm fits that description.
If you’re already playing Deep Rock Galactic, this is an easy call. If you’re not, it’s probably not the entry point — but the base game is absolutely worth investigating for players who enjoy tight cooperative threat management across 1–4 players.
Unmatched: Stars and Stripes
Unmatched continues to be one of the most reliably enjoyable skirmish systems in the hobby. Stars and Stripes adds a new fighter set to the roster, following the format that has made Unmatched work so well — asymmetric abilities, clean action economy, and matches that run 20–40 minutes without ever feeling rushed.
If you enjoy head-to-head strategy games and haven’t played Unmatched yet, the Stars and Stripes set is a fine entry point that pairs well with other sets in the range. For existing fans, the value proposition is straightforward: you know whether you like Unmatched, and you know what you’re getting here.
Deck Builder Updates: Star Realms and Hero Realms
June brings two more releases from Wise Wizard Games. Colony Wars expands Star Realms to support up to six players, which is a meaningful structural change for a game that typically plays 2. If you’ve ever wanted to run Star Realms for a larger group, this is the expansion that makes it feasible. Meanwhile, the Hero Realms Adventure Deck for the Fighter class adds a new character-driven play mode for that specific build — narrower in scope, but useful if Fighter is your preferred playstyle.
Both releases are squarely aimed at existing players. If you want a deeper breakdown of how these deck-builders work at a mechanical level, our deck-building strategy guide covers the foundational principles across the genre.
Detective: Heists & Heartbreak
Portal Games’ Detective series is one of the better mystery-investigation games in print, and Heists & Heartbreak adds new cases to the mix. If you enjoy deduction-based games where the narrative unfolds through clue-chasing and cross-referencing, this is exactly what it sounds like — more Detective content at the same quality level as the base game.
The 1–5 player range and 60–120 minute sessions make this one of the more flexible investigation games available, and new cases are always welcome for groups that have burned through the existing material.
Industry Trends to Watch
The May/June window reinforces a trend that’s been building across 2026: publishers are releasing more expansion content for proven systems rather than betting on new titles. That’s a sensible strategy given how crowded the market is, and it means players who are already invested in franchises like Hero Realms, Unmatched, or the LotR LCG are well-served right now.
The two video game adaptations in June — Valheim and The Last Spell — also continue the pattern of publishers targeting games with built-in PC gaming audiences who might be looking for a bridge to tabletop. It’s worth watching whether these adaptations hold up mechanically, or whether they rely too heavily on brand recognition.
Looking slightly further out, ICv2 reported that a new Lord of the Rings board game called Circle of Conflict is slated for November 2026, and Chip Theory Games has Jump Masters! in preorder for August. The back half of the year is shaping up to have more headline new releases than this summer window.
If you want to catch up on what came before, our March/April 2026 roundup covered Azure and several other medium-heavy strategy launches that are worth knowing about.
Which Games Should You Watch?
For strategy-focused players specifically, the priority list shakes out like this:
If you already play Hero Realms, the Watery Grave Campaign Deck is the standout May pick — it adds genuine structural depth rather than just more cards. If you’re interested in cooperative survival gaming, Valheim: The Board Game is the June release worth monitoring most closely, assuming the mechanical details hold up as they’re revealed. And if you enjoy asymmetric head-to-head play, Unmatched: Stars and Stripes is a reliable addition to a reliable system.
The Age of Steam expansion volumes are for a specific audience, but that audience knows exactly who they are.
What’s catching your eye from this month’s list? Let us know in the comments below — and if there’s a game you think deserves more coverage, we’d love to hear about it.
Want to stay on top of new releases every month? Sign up for our newsletter and we’ll deliver the strategy gaming news that matters directly to your inbox.
Continue Your Journey
- Deck-Building Games: Rules and Strategies — Get up to speed on how the genre works before the new Hero Realms and Star Realms content drops.
- Best Single Player Board Games — If cooperative play is your thing, this guide covers the solo and co-op landscape in depth.
- Area Control Games — Useful context for Age of Steam and other economic strategy games arriving this month.
- What’s New in Gaming: March & April 2026 — Catch up on the earlier spring releases before summer arrives.
- Best Board Games for Big Groups — Colony Wars expanding Star Realms to six players puts it firmly in this territory.
Updated: May 2026