COSMOINSTCOSMIC INSTITUTE
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THE SCENARIO ARCHIVE

Six missions.
Six ways to think.

Fictional tabletop concepts with practical starting rules. Choose a brief, sketch a board and use ordinary counters to explore its central decision. The timing and player counts below are estimates for discussion, not product specifications.

Lyra Relay ↘Vesper Crossing ↘Nivalis Station ↘Orion Accord ↘Kepler Supply ↘Echo Protocol ↘
Connect three beacons before the signal window closes.MISSION / 01

Route building · intro

Lyra Relay

Connect three beacons before the signal window closes.

30 min estimate2–4 playersConcept exercise

The first experiment

Each turn, spend one fuel to move along a connection or one signal to activate your current beacon. Activate three different beacons within eight rounds.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗
Escort two survey ships through a moving asteroid field.MISSION / 02

Action planning · tactical

Vesper Crossing

Escort two survey ships through a moving asteroid field.

60 min estimate2–3 playersConcept exercise

The first experiment

Choose two actions secretly: move, scan or shield. Reveal together, shift the asteroid belt one hex, then resolve ships in initiative order.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗
Build a reliable energy network on a frozen moon.MISSION / 03

Resource sharing · intro

Nivalis Station

Build a reliable energy network on a frozen moon.

45 min estimate1–4 playersConcept exercise

The first experiment

Take two energy cubes each round. Spend three to add a relay, or one to protect a relay from the next storm. Power four relays to finish.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗
Negotiate safe passage without giving away your entire plan.MISSION / 04

Negotiation · deep

Orion Accord

Negotiate safe passage without giving away your entire plan.

90 min estimate3–5 playersConcept exercise

The first experiment

Each player holds two public promises and one private objective. Agreements last one round; score fulfilled promises, never the loudest argument.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗
Keep a remote station supplied across six changing rounds.MISSION / 05

Engine building · tactical

Kepler Supply

Keep a remote station supplied across six changing rounds.

60 min estimate2–4 playersConcept exercise

The first experiment

Commit cargo to one route, then reveal a demand card. A matching delivery upgrades your route; an unmatched delivery remains useful as reserve.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗
Interpret a shared signal while keeping a small reserve of uncertainty.MISSION / 06

Card programming · deep

Echo Protocol

Interpret a shared signal while keeping a small reserve of uncertainty.

90 min estimate2–4 playersConcept exercise

The first experiment

Queue three signal cards face down. Reveal the first, discuss the visible information, then choose whether to keep or replace your remaining sequence.

Observe before adding complexity

Play one unscored round. Ask each participant to explain the available choices in their own words. If a cost or connection is unclear, simplify that part before expanding the scenario.

Prepare a clear first turn ↗