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Unstoppable – System Understanding, Factions & Strategy

Reading time approx. 8–10 minutes

Unstoppable – System Understanding, Factions & Strategy

You’ve played your first few games, know the 5 phases, and still lose frequently? Then you're in the right place. This post goes deeper than the quick start guide: Why does the game work the way it does? Which faction suits you best? And how do you specifically defeat each of the three bosses?

Prerequisite: You know the basic rules. If not, please start with our Quick Start Guide.

Why Unstoppable works differently from other Deckbuilders

In classic deckbuilders like Star Realms or Hero Realms, you buy cards from the market. Not in Unstoppable. You defeat threats to get cards – every defeated enemy becomes a new card in your hand. This changes everything:

  • No card draw without combat: Defeating threats is simultaneously your card drawing, your deckbuilding, and your defense. Those who don't fight don't draw cards.

  • Every upgrade has a price: Every upgrade you install also strengthens the threat side of the card. Growth and danger are inseparable.

  • Your deck is the battlefield: The cards in your deck are simultaneously your weapons and your enemies. This is the core of the system.
The most important insight for advanced players:
Unstoppable is not a game you win by collecting as many cards as possible as quickly as possible. You win by finding the right balance: building up enough strength without making the threats uncontrollable. You want to defeat enemies to draw cards – but acting too aggressively will leave you defenseless on your next turn.

The Momentum System (Momentum Deck-Building)

The subtitle "Momentum Deck-Builder" is not marketing – it describes a real game mechanic. Each turn builds on the previous one:

  • If you defeat many threats → more cards in hand → more options next turn

  • If you lose the rhythm → fewer cards → less damage → more threats → downward spiral

  • Every round you advance the danger marker without making progress will cost you the game
Momentum Trap for Beginners:
Many players initially try to buy too many upgrades and fight too little. This sounds strategic but destroys momentum. Upgrades are valuable – but only when you actively fight and get new cards into your hand.

The 4 Factions in Detail

Each character has starting cards from two of the four factions – this gives you a natural alignment. Each character contains cards from two factions, giving you direction if you don't yet have experience building synergies.

Council – The Diplomats

Playstyle: Reward variety, mix factions

  • Keyword Unite: The more different factions you have in hand and in play, the stronger the effect. Maximum at 4 different factions.

  • Strength: Can make an upgrade free if you have three different factions active. Extremely efficient if you aim for a broad deck mix.

  • Weakness: Requires a mixed hand – if you focus too heavily on one faction, Council cards lose significant value.

  • Suitable for: Players who like to react flexibly and don't want to plan strictly.
Council Strategy:
A Council card can make an upgrade free if you have three different factions in hand and in play. Plan your selection phase (Draft Phase) consciously so that you always have at least 3 factions represented. Council rewards breadth over depth.

Junker – The Engineers

Playstyle: Collect credits, buy upgrades cheaply

  • Strength: Junker cards give you credits and make upgrades cheaper. They enable an aggressive upgrade strategy without wasting action points.

  • Keyword Bargain: Price decreases by 1 for each Junker card in hand or in play. With 4 Junker cards, you can effectively get upgrades for free.

  • Weakness: Junker itself deals less direct damage – you rely on good upgrade synergy to efficiently defeat threats.

  • Suitable for: Players who plan long-term and want to heavily upgrade their cards.
Junker Strategy:
Prioritize credits early and buy cheap upgrades in rounds 1-2. With enough Junker cards in play, every subsequent upgrade becomes a bargain. Combine Junker with cards that deal high damage – Junker finances, other factions fight.

Silver – The Fighters

Playstyle: Direct damage, sacrifice

  • Strength: Silver cards focus on direct damage, often at the cost of your own resources. Highest damage output of all factions.

  • Keyword Focus: The value X corresponds to the number of all Silver cards in hand and in play. With 4 Silver cards, a Focus card deals 5 damage.

  • Weakness: Many Silver effects cost life points or resources. You live more dangerously, but hit harder.

  • Suitable for: Players who play aggressively and want to quickly eliminate threats.
Silver Strategy:
Build up to 4+ Silver cards in hand and play as quickly as possible. A Silver Focus with 4 cards hits like almost no other combination in the game. But factor in life point loss – always keep Armor ready.

Viruses – The Swarm

Playstyle: Build up mass, stack synergies

  • Strength: Viruses work best as a swarm – a Virus card deals more damage because you have two more Virus allies and a Virus tactic in play.

  • Keyword Conspire: Only triggers if at least 1 other Virus card is in hand or in play. Strong if you have many Virus cards – useless if you only have one.

  • Weakness: Slow start – Viruses need time to build up. Often weaker than other factions in the first 2-3 rounds.

  • Suitable for: Players who like a strong mid-game explosion and prefer to pursue a clear direction.
Virus Strategy:
Consistently invest in Virus cards during the selection phase. Bring Virus allies into play early and exhaust them. The more Virus cards simultaneously in hand and in play, the stronger each individual effect. From round 4-5, a complete Virus swarm can become almost unstoppable.

Boss-Specific Strategies

The Harbinger – Recommended for Beginners

Victory condition: 12 damage points per player (Solo: 12, Co-op: 24)

How The Harbinger works:
According to the rulebook, for The Harbinger: "When you deal 1 damage, deal it to this boss." – all damage goes directly to the boss. Victory condition: 12 boss damage per player. However, Order cards (Order Acolytes, Order Archivists) appear as boss threats in your deck – when they enter your hand or come into play, they immediately deal 1 damage and go to the discard pile. They cannot be eliminated.
  • Priority: Accumulate Boss Damage (Boss Damage ★) – each damage point on cards with the Boss Damage symbol goes directly to The Harbinger.

  • Attention: Order cards immediately deal 1 damage when they enter your hand or come into play. Plan your life marker and armor accordingly.

  • Best faction: Silver or Viruses – both deliver high damage and Boss Damage symbols at higher levels.

  • Danger: Order cards cannot be eliminated and will keep coming back – learn to account for the damage instead of ignoring it.

The Triumvirate – Medium Difficulty

Victory condition: 5 damage points per player directly to the boss

How The Triumvirate works:
According to the rulebook: "When you deal 1 damage, if at least 2 cards are active, you must deal it to an active card. Otherwise, you may deal it to an active card or to this boss." – so you can only attack the boss directly if fewer than 2 Triumvirate cards are active. When leveling up, a new Triumvirate card is added to your discard pile.
  • Priority: Always keep at least 2 Triumvirate threats active – but never more than 2, otherwise you won't be able to attack the boss.

  • Timing is everything: When you only have 1 active threat left, the window opens. Use it for maximum boss damage.

  • Best faction: Council or Junker – Council for flexible reaction, Junker for upgrade-supported damage.

  • Danger: When leveling up, a new Triumvirate card is added to your discard pile. Control the timing of your level-ups.

Duomo's Menace – Advanced

Victory condition: Read an "Ending" option on a Boss card

How Duomo's Menace works:
Duomo's Menace works completely differently from the other bosses. Boss cards describe scenarios with multiple decision options and costs. If you pay the price of an option, you flip the card and read the outcome. Some effects trigger automatically (! Effects). The game ends when you read an "Ending" option – which can mean victory or defeat.
  • Priority: Read and understand Boss cards immediately. Active cards remain next to the Boss – keep track.

  • Decision Logic: Not all options on a Boss card are equally good. Before paying, check which option is better long-term.

  • Best Faction: Any faction works – but Viruses for strong damage output to quickly eliminate accompanying threats.

  • Danger: Automatic effects (! Effects) can turn the tide of the game. Read each new Boss card completely immediately.

Advanced Upgrade Strategy

Upgrades are the most powerful tool in the game – and the most dangerous if used incorrectly.

When an upgrade is worthwhile:
An upgrade is worthwhile if the bonus on the Core Side (Core Side) outweighs the disadvantage on the Threat Side (Threat Side). Before each purchase, check: What do I get on the core side? What does it cost me on the threat side? For weak starting cards like Strike, the ratio is often unfavorable.
Upgrade Timing:
Preferably buy upgrades in the Main Phase (Main Phase) when you have credits left and the battlefield is under control. Never buy upgrades at the expense of action points needed for important threats. Junker cards make this timing significantly more flexible.
Which cards to upgrade?
Prioritize upgrades on strong cards with high levels – they bring more benefit on the core side. Avoid upgrades on starting cards like Strike: the threat side becomes stronger, but the utility on your side is limited. A good rule of thumb: only upgrade if you have a card in your deck that you want to keep permanently.

Elimination as a Weapon (Card Elimination)

Removing cards from the game is one of the strongest actions – and most often underestimated.

  • When leveling up: Eliminate 1 card from hand or discard pile. Priority: Strike first, then Spare Credits, then weak early threats.

  • Danger Marker Bonus: When the danger marker reaches an elimination space, you can eliminate 1 card for 1 credit. Keep credits ready when this bonus approaches.

  • Why eliminate Strike? Strike costs 0 action points and deals 1 damage. As you level up, you will have stronger cards – Strike then thins your deck without significant contribution. Each eliminated Strike card means drawing your stronger cards more frequently.
Attention – Elimination is permanent:
Eliminated cards return to the box and are no longer available for the rest of the game. Consider carefully which cards you eliminate – especially character cards that may become stronger at higher levels.

Market Management (Market Management)

The upgrade market always shows 6 cards. When the danger marker reaches a Market Cycle space (Market Cycle), you can place any number of upgrades from the market at the bottom of the upgrade stack and refill the market. This is a powerful tool:

  • Actively use the market cycle if the current market is bad for your faction.

  • Faction-specific upgrades have discounts – wait for an upgrade that matches your faction.

  • Junker players can get expensive upgrades cheaply through Bargain effects – always check the discount.

Strategic Use of Deck Threat (On-Deck Threat)

The top card of your deck is the deck threat – it is not considered an active threat but still attacks under certain conditions. You can already damage it before it becomes active.

Pro-Use of Deck Threat:
Attacking the deck threat is a reliable way to draw cards – but going too far can leave you defenseless next turn. Attack the deck threat when you have active threats under control and still have action points. Avoid investing all points in the deck threat if active threats are still dealing damage.

2-Player Cooperative Strategies (2-Player Cooperative)

In 2-player mode, all basic rules apply, but the demands increase:

  • Division of Labor: Agree early on who builds which faction. Overlaps mean competition for the same core cards in the selection phase.

  • Boss Damage: For The Harbinger (24 total damage) and The Triumvirate (10 total), both players must actively deal boss damage – one alone is not enough.

  • Battlefield Coordination: Discuss who attacks which threats. Both players keep an eye on immediate threats.

  • Danger Timing: The danger marker advances only once per round – regardless of whether player 1 or 2 is currently taking their turn. Plan together when to level up.

Checklist before each turn

These 5 questions before each main phase:

1. Is there a Fast Threat? → Prioritize immediately.

2. Is there a Taunt Threat? → Must be attacked first.

3. How many action points do I have? → Plan attacks and upgrades accordingly.

4. Do I have enough Faction cards for synergies? → If not, adjust in the selection phase.

5. When will I level up next? → Plan which allies you can still make the most of.

The most common strategic mistakes

  • Too many upgrades too early: Upgrades before a solid deck lead to stronger threats, but not enough strength to defeat them.

  • Mixing factions without focus: Without clear faction synergy, all keywords (Bargain, Conspire, Focus, Unite) remain far below their potential.

  • Ignoring elimination: Leaving Strike in your deck until Level 4 is one of the most expensive mistakes. Eliminate early and consistently.

  • Over-prioritizing deck threats: Attacking deck threats sounds efficient – but active threats that hit you every round are the real threat.

  • Confusing boss damage and normal damage: Only Boss Damage (★) hits the boss – normal damage goes to threats. Check each card for the Boss Damage symbol.

  • Leveling up without preparation: After leveling up, you no longer have allies and your deck is freshly shuffled. Never go into a level-up with a full, uncontrolled battlefield.

Would you like to start with the basic rules? Click here for the Quick Start Guide. Before playing: our Sleeving Guide for initial setup.

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