Head-to-head comparison
SETI: Search for Extraterrestrial Intelligence vs Ark Nova
Both are heavy card-driven engine builders from the same corner of the hobby. Ark Nova is the safer buy; SETI is the fresher one. Own both eventually, buy Ark Nova first.
Heavy weight
SETI: Search for Extraterrestrial Intelligence
$70
Launch probes, aim telescopes, chase faint signals: a science euro where hunting for aliens actually feels like science.
Buy SETI: Search for Extraterrestrial Intelligence · $70 →
Heavy weight
Ark Nova
$65
Build the world's best zoo one clever card slot at a time: the heaviest game people happily play until 1am.
Buy Ark Nova · $65 →Pick SETI: Search for Extraterrestrial Intelligence if
You want a space theme, a rotating solar system, and moments of real discovery when an alien species appears mid-game; it also plays a little faster.
Pick Ark Nova if
You want the zoo-building card game with a bigger card pool, a two-track scoring race, and the more established community and expansions.
The tradeoff.
SETI: Search for Extraterrestrial Intelligence
SETI casts you as a research institution hunting for life beyond Earth across five rounds. On your turn you take one main action plus any number of free actions: launch a probe, pay resources to push it through space, then choose whether to land for surface samples or hold orbit for broader coverage. The board is a rotating solar system, so planets literally shift position between rounds and probe timing becomes a real planning problem, launch too late and your target has moved. Back home you point telescopes at distant sectors to scan for signals and exoplanets, analyze the data you have gathered, raise income, upgrade equipment, and play from a deck of more than 200 cards featuring real technology and missions: Voyager, Perseverance, the ISS, the Large Hadron Collider.
Designer Tomas Holek and Czech Games Edition have built that rare heavy euro where the theme does actual work. The rotating solar system is not decoration; it is the central constraint your whole plan bends around, and the slow accumulation of scan data genuinely feels like patient science paying off. If you enjoyed the engine arc of Terraforming Mars or the discovery structure of Beyond the Sun, this sits in that territory with its own probe-and-signal identity. The line also has momentum: the Space Agencies expansion won the 2025 Golden Geek for Best Expansion.
Best for: Strategy Night, Epic Evening, Solo
Ark Nova
Ark Nova hands you a zoo map and five action cards: Build, Animals, Cards, Association, and Sponsors. The cards sit in a row of five slots, and a card's power depends on its position: play the card in slot five and you get its strongest effect, then it returns to slot one and everything else slides up. That single system drives the whole game. You are building enclosures on your map, playing animal cards into them, recruiting sponsors, and funding conservation projects, and every one of those things wants a different action at a different strength at a different time. Turns are fast, usually one card and done, but the planning between turns is where the game lives. Two scores, appeal and conservation, start at opposite ends of the same track, and the game ends when a player's two markers cross, which builds a satisfying doomsday clock right into the scoreboard.
The catch is scope. The box says 90 to 150 minutes, a four-player game with newcomers will blow past that, and with more than 250 unique cards the market can simply refuse to show you what your engine needs. This is a heavy euro that rewards repeat play and a group that keeps the pace up. Where it earns its top-five BoardGameGeek standing is at the low counts: solo and two-player games are brisk, brutal, and endlessly replayable, and the solo mode is one of the best in the hobby. If Wingspan is a warm bath, Ark Nova is a triathlon, and the people who love it really love it. At around 65 dollars it is a lot of game for the money. Buy it if long-haul optimization sounds like a great evening; skip it if anyone at your table wilts after hour two.
Best for: Solo, Epic Evening, Strategy Night
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