SpaceChem: 63 Corvi Review Summary

Last updated: 2026-09-30
  • Good value for low price
  • New quantum tunneling mechanic praised
  • ResearchNet levels creative and fun
  • New reactor introduces teleportation mechanic
  • DLC lacks FlipFlops component
  • Tedious teleport mechanic and too easy
SpaceChem: 63 Corvi header

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Review evidence

Why players say this

Steam review verdict

At a low price, the creative, fun ResearchNet levels and praised quantum tunneling shine, but the new reactor's tedious, too-easy teleport mechanic and missing FlipFlops component disappoint.

What players like

Good value for low price: Multiple reviewers highlight that the DLC is very cheap and offers substantial content, making it a no-brainer for fans of the base game. The price-to-content ratio is frequently praised.

New quantum tunneling mechanic well received: Reviewers find the new quantum teleportation mechanic interesting and unique, making the campaign feel fresh rather than rehashed. It adds a novel way to solve puzzles by teleporting molecules and breaking connections.

Moderate difficulty compared to base: The expansion is generally less difficult than the late main game puzzles, with levels roughly as hard as mid-to-late game. Some reviewers note it is not overly demanding.

ResearchNet levels praised for creativity: The ResearchNet levels include many new ideas and surprised players positively with their quality. They offer open-ended mechanics that allow for creative solutions beyond known concepts.

New levels are fun and satisfying: The new puzzles provide a good bit of fun and are satisfying to solve, even if they are not overly difficult. Players enjoy the sense of accomplishment from beating them.

Common complaints

DLC lacks FlipFlops: Players miss the FlipFlop mechanic from the base game, and its absence makes puzzles feel like a step backwards. Working without FlipFlops is frustrating and reduces enjoyment.

Tedious teleport mechanic: The new reactor forces players to teleport particles one at a time, requiring constant destruction and rebuilding of molecules. This makes complex molecule assembly feel like a chore and gets old fast.

DLC is too easy: The DLC is easier than the original, with new levels not as difficult as the end of the main campaign. The final level is also on the easy side and provides underwhelming rewards.

One-by-one gimmick too simple: The gimmick of moving atoms one-by-one makes puzzles quite simple, and once the basic technique is learned, all puzzles feel solved. This reduces challenge and engagement.

Story is lacking: The story part is not rich, fails to reveal Bruce Novak or explain the aliens, and adds nothing new. It doesn't seem as if there was anything actually new to learn from it.

Gameplay and performance

New reactor introduces teleportation mechanic: The DLC features a new reactor that allows teleporting a molecule from one point to another while breaking connections, and forces teleporting particles one at a time from input to output, requiring destroying and rebuilding molecules.

Barrier inside machines adds complexity: The DLC adds complexity with a barrier inside machines, which prevents atoms from crossing and requires working around it.

Teleporters transport single atoms: Teleporters can only transport single atoms, requiring assembly to be done in the right half of the reactor before the corresponding output.

Quantum union and teleportation mechanics: The DLC introduces a new mechanic known as quantum union and quantum teleportation, which adds new puzzle elements.

FlipFlops absent in DLC levels: FlipFlops are a mechanic from the main game that DLC levels lack, and the teleport mechanic removes the flip flop mechanic.

Recommendations

Recommended for Base Game Fans: Many reviewers consistently state that the DLC is a must-buy for those who enjoyed the base game, as it offers more of the same experience. However, they also note that if you didn't like the base game, this DLC won't change your mind.

Good Value for Price: Multiple reviewers highlight that the DLC is reasonably priced and worth the money for the additional content. Some even say they'd be happy to pay more for the extra levels.

For Those Wanting More Puzzles: Reviewers recommend the DLC for players who found the original game too short or want additional SpaceChem levels. It provides a satisfying expansion for puzzle enthusiasts.

Alternative Free Content Exists: A few reviewers point out that the base game's ResearchNet offers 300 free levels, making the DLC unnecessary for some. They suggest exploring ResearchNet or the online community instead of buying the DLC.

Only for SpaceChem Enthusiasts: Some reviewers advise buying the DLC only if you really like SpaceChem, as it mainly offers a few new puzzles. It's not for casual players.

Buying context

Community fair range: $9.99 - $14.99.

Game completion: 4.7h.

Player profiles

SpaceChem Devotee: Play additional campaign-style content immediately after or alongside the main game. Motivation: Continuing the SpaceChem experience with more puzzles. Stance: buy.

Value-Conscious Puzzle Fan: Wait for sales or deep discounts, then buy and play the added puzzles. Motivation: Getting inexpensive extra puzzles from a game they already enjoy. Stance: deep sale.

Achievement Completionist: Rush the campaign for the achievement, often on sale, then stop playing. Motivation: Unlocking achievements and completing the game's checklist. Stance: sale.

Other review notes

DLC Includes Seven Levels: The DLC adds a campaign with seven new levels or assignments. This is consistently mentioned across several clusters.

DLC for SpaceChem: The DLC is specifically for the game SpaceChem, known as 63 Corvi. It expands the original game's content.

Adds New Planet and Story: The DLC introduces a new planet, 63 Corvi, and narrates the origin of its space colony and human expansion. It explores new story territory.

Single Campaign Achievement: There is one achievement for beating the campaign. Another achievement is obtainable by buying the DLC.

Active Online Community: The online community for SpaceChem is still pretty active. This includes tournaments and community engagement.