Planet Unknown

Every review on Meeple Cove is written after exactly one play. No replays, no second sessions — just an honest account of how a game landed the first time we sat down with it.

The reason is simple: there are too many games to play. New releases come thick and fast, and the pile of unplayed games on the shelf never gets any shorter. In that reality, most games only get one shot at the table. If a game takes two, three, or four plays to reveal its strengths, it may well be a great game — but if that first play didn’t grab us, the chances of it making it back to the table are slim. We don’t need to love a game immediately, but if it’s the kind of game that needs multiple plays to click, we need to be able to see that potential in the first session. We’d rather not invest three or four plays only to find it wasn’t for us after all.

There are plenty of reviewers who play games many times before passing judgement, and if you want a deeper, more considered take on a game’s long-term merits, they will serve you far better than we will. But that’s not what this is. This is one play, one verdict — an honest reflection of how many people actually experience a game. Our conclusion isn’t whether a game is objectively great or not. It’s simpler than that: would I play it a second time?

Intro

One 4P game played.

Planet Unknown is a polyomino tile-placement game by Ryan Lambert and Adam Rehberg, set against a straightforward premise: Earth has exhausted its resources, and corporate planeteers have been dispatched to terraform an unknown planet and secure humanity’s future. The theme is so-so but for a game like this we are really more focused on the mechanics. Put simply this is a polyomino tile placement game with tracks.

Each round, the station commander may rotate the central shared space station (a lazy Susan) — to position a particular depot in front of them. Every player then simultaneously drafts one of two available tiles from the depot that is aligned to them. Place the tile on your planet, advance the corresponding resource trackers on your corporation board, and claim whatever benefits sit beneath them. Those trackers unlock various powers and points scoring. The game will end when either a player cannot legally place a tile from their depot or when one depot is completely emptied.

At end-game each player scores their medals (VPs) to see who is the winner.

A four-player game took around 1.5 hours including the teach.

Setup & Teach

The rulebook is good — clear, well-structured, and supported by diagrams and worked examples that make every mechanism easy to follow. Teaching is straightforward: the core loop of draft, place, and advance is simple enough to explain in a few sentences, and the resource tracks are clearly laid out on each corporation board.

Setup is quick and simple. Everyone takes a player board (the designers recommend that first-time players use the symmetric Universal Coalition corporation and planet boards) and put a marker at the bottom of each track. Some Civ cards are put out and an Objective card is placed between each player and their neighbour on either side such that each player is competing on an Objective with the player to their left and a different objective with the player on their right.

The teach is helped hugely by both core mechanisms (tile placement and track advancement) being simple. The tile placement rules are very simple and will be familiar to most players (e.g. must be orthogonally adjacent to previous tile, tiles cannot overlap etc…). In addition, each tile has exactly two icons – which means you will move up on exactly two tracks which results in a low cognitive load for players (note: that you may move more than two tracks on a turn due to triggering effects).

All in all – great job in both the design of the game and the rulebook to make it very accessible.

Gameplay

In each round, the station commander will rotate the space station and each player will take one of the two tiles that are in front of them. Each tile has two resources and will allow you to move up one space on each corresponding track. There are six tracks each with a different benefit:

Civ — Milestones let you draft Civ cards, which give immediate bonuses or end-game scoring boosts. As you advance further you choose from a higher level deck and the bonuses become stronger.

Water — The most medal-dense track; advances only when water terrain is placed directly onto planetary ice.

Biomass — Milestones reward you with Biomass Patches. These are 1×1 in size to fill gaps on your planet to help complete rows and columns.

Rover — This track allows you to deploy rovers and then move them to collect meteorites and lifepods.

Tech — Milestones unlock permanent technologies (five levels) that give you rule breaking abilities that improve your efficiency for the rest of the game

Energy — No track of its own; instead, placing an energy tile lets you advance on an resource track on that or an adjacent tile.

The opening rounds are pretty loose. It’s quite easy to place tiles and you can merrily move up the tracks – and really it doesn’t matter too much which ones since all are good in their own way. But then around a third of the way through the game starts to click. As the planet begins to fill and the tracks start climbing, the strategic picture sharpens: certain tracks are pulling ahead, certain tile shapes are becoming harder to fit, you desperately need to move up one space on a particular track to get a particular bonus.

Once this happens, the dual nature of every tile placement becomes the game’s central tension. Each tile asks two questions simultaneously: does this piece fit the shape I’m building on my planet, and does it carry the resources I need to advance my tracks? In the early game those two considerations rarely conflict — there’s enough open space to serve both. As the planet fills in, that flexibility disappears. Gaps become awkward, useful tile shapes become scarcer, and pieces that would be ideal from a resource perspective simply don’t fit where they’re needed. That spatial squeeze, arriving gradually rather than all at once, is what keeps Planet Unknown engaging from the first placement to the last.

The endgame sharpens this tension considerably. Whether triggered by a depleting depot or a player running out of legal placements, the approaching finish line creates an acute sense of having more to accomplish than rounds to do it in — one more row to complete, one more milestone to reach, one more awkward piece to fit. That final scramble is where the game is at its best, and the simultaneous-play structure means every player experiences it at once. Nobody is watching someone else agonise; everyone has their own problems to deal with!.

The station commander rotation adds a light but meaningful layer of indirect interaction. The commander’s choice of which depot to face determines what tiles every other player can draft from, and while this rarely feels confrontational on a first play, the possibility is always present. Reading what opponents need — and choosing a rotation that serves your own interests while disrupting theirs — is an important part of the game and one I expect develops with familiarity. The iconography on tiles and tracks is clear and easy to read on your own board, but scanning across the table to assess other players’ planets in real time proved harder than expected. That difficulty is a function of spatial distance rather than poor design, and it’s unclear whether this would improve with more plays.

Scoring rewards efficiency on multiple axes: fully complete rows and columns on the planet, the highest medals your trackers have reached across all five resource tracks, collected lifepods and meteorites, end-game civ cards, and neighbour objective cards that compare your planet directly to the player beside you.

We also played with the private objective and Events modules. The private objectives were fine with each player receiving points if they met their objective. The Event deck was a bit disappointing since a new one was revealed each round and (maybe through bad luck) most of our cards just restricted rover movement. Also, we kept forgetting to draw the event cards in the early rounds which didn’t help! I would probably add them both for the next game (spoiler alert!) but the game is perfectly fine without them.

Likes

The core loop is genuinely simple and smooth. Draft a tile, place it, advance two tracks. The mechanisms are easy to teach and learn and the decisions that emerge from them are immediately interesting without any of the rules overhead.

Downtime is negligible. The main downtime is when the commander is choosing where to rotate the space station – however in our group any tardiness was quickly called out – especially in the first half of the game when (within reason) it doesn’t matter hugely which tile you take (especially in your first game). Once a position is chosen by the commander, each player only has two tiles to choose from – so this again is a pretty quick decision which moves the game along nicely.

Multiple strategies feel viable from the outset. Whether prioritising for medals, pushing the rover track, chasing tech milestones, or focusing on filling the planet efficiently for row and column scoring, no single approach appears to dominate

The game is flexible in the intensity it rewards. It works just as well as a relaxed puzzle played at a casual pace as it does when players are counting rows, planning ahead, and optimising every track advancement. The game doesn’t demand the latter to be enjoyable, but it rewards it.

Component quality is strong. The space station is a satisfying physical centrepiece, and the corporation boards are clean and well laid out. However, the retail version doesn’t have a lid for the lazy Susan which seems to be an odd omission.

Dislikes

The rover mechanism is one of the most tactically engaging parts of the game — physically moving a piece across your planet to collect meteorites and lifepods is genuinely enjoyable. The scoring payoff, however, is flat: lifepods convert at one medal each and meteorites at one medal per three collected. Given how satisfying the rover puzzle is to execute, those returns feel like a missed opportunity. Some form of scaling reward or threshold bonus would have given the rover system the weight its execution deserves.

The colour palette makes it difficult to spot empty grid squares on your planet at a quick glance, particularly as the board fills in. A minor readability friction, but a persistent one throughout the game. This makes it even more difficult if as a commander you are trying to choose depots based on other players’ board state.

This is a multi-player solitaire game. Player interaction is limited. Apart from the player objective, the only other potential interaction would be to choose depots to make sure that others don’t get what they want. In reality I just don’t see this happening much except for maybe in the last or second to last turn. Players will in most cases be able to place a tile – and I just don’t think any player is going to go deep enough to look at an opponent’s track position to ensure they can’t go up a specific track.

The key strength of this game (limited downtime) could also be its biggest weakness – in particular in a larger player count (say 4 players) you will only get to choose the tile 25% of the time – the remainder you will be at the mercy of the other players. What this means is that most of the game you have limited control with having to choose from one of only two tile options. This limits your ability to drive a strategy of focusing on particular areas. However for a sub one hour game (once all players know the rules) I don’t see this as a deal breaker.

Verdict

Planet Unknown is a well-designed game that plays smoothly. The simultaneous-play eliminates downtime entirely, and the dual puzzle of fitting tile shapes while climbing resource tracks creates an interesting decision right from the start. It scales comfortably from a relaxed group puzzle to a tightly contested scoring game depending on how much intensity players bring to it — and that flexibility is something that in my view is quite rare in games. Given you are moving up tracks on every turn, the dopamine hits keep coming and even if you lose, you will have enjoyed the experience.

Having only played the symmetric boards the biggest concern would be long term replayability. While at the end of the first game, I definitely wanted to play it again, I didn’t get the feeling that “I want to go up track x” or “do y” next time since they probably all end up in the same place. I really enjoyed the Civ cards which is the only element of “surprise” in the game and so will almost certainly want to do that again. But would I want to play it time and time again? – I think this will depend on the asymmetrical planets and whether they are interesting enough to provide long term replayability.

At the end of the first game I definitely wanted to play the game again — however it also causes a slight concern that the lack of control  may ultimately lead to limited plays over the longer term and the excitement of the first game may fade quicker than you would expect.