Every elixir point you spend is a gamble. Deploy too aggressively and you leave your towers defenseless; hold back too long and the enemy overwhelms you before the clock runs out. Clash of Vikings is a card-based strategy battle game where you drag Viking troops, heroes, and spells onto a divided battlefield to destroy your opponent's towers within a three-minute time limit. If you enjoy the strategic tower-defense genre, this free browser game on PLRun delivers tight tactical decisions with no download required.
Clash of Vikings is an HTML5 strategy game inspired by Clash Royale that distills the card-battle format into fast three-minute matches against AI. You build a deck of eight cards — troops, heroes, and spells — and deploy them onto a lane-based battlefield using elixir that regenerates over time. Each unit marches automatically toward the enemy's towers, and your job is to decide what to deploy, where to place it, and when to spend versus save your resources.
The game was originally released in February 2017 and later updated to its current HTML5 version in 2022. What keeps matches interesting is the elixir management tension: every card costs a specific amount, and overspending leaves you unable to respond when the opponent pushes. The final 60 seconds double your elixir regeneration rate, turning the end of each match into a frantic sprint of rapid deployments. This free online game runs directly in the browser on desktop, mobile, and tablet with no installation needed.
All interactions use the mouse. Select a card from your hand at the bottom of the screen, then left-click and drag it onto the battlefield to deploy that unit or spell. You can only place units on your own side of the river — the dividing line that splits the arena. On mobile devices, tap a card and drag it to your desired position. There are no keyboard shortcuts; the entire game is controlled through clicking and dragging.
Each match lasts three minutes. You and the AI opponent each have a main castle and guard towers. Your goal is to destroy more of the enemy's towers than they destroy of yours before time expires. Destroying the enemy's main castle wins the match outright regardless of the timer. If neither side has destroyed towers by the end, the player who dealt more tower damage typically wins. This means even a partially damaged tower matters — chip damage across multiple pushes adds up.
Before each battle, you can customize your deck of eight cards in the deck menu. Cards fall into three categories: troops are ground units that march toward enemy towers and fight anything in their path, heroes are stronger Viking warlords with higher stats that serve as tanks or high-damage dealers, and spells deal instant damage or create effects on a targeted area without requiring a unit on the field. The deck menu also shows each card's elixir cost and basic stats, so you can balance your deck between cheap swarm units and expensive powerhouse cards before entering battle.
Elixir is the resource that governs every deployment. It regenerates passively throughout the match, and each card costs a set amount. Deploying a 5-elixir hero when you only have 5 elixir means you cannot respond to anything until it regenerates — leaving your other lane completely open. During the first two minutes, elixir regenerates at a standard rate that forces careful spending. In the final 60 seconds, the regeneration rate doubles, letting you deploy units much faster. This tempo shift is the most important moment in every match: the player who enters the last minute with a tower advantage and a full hand of cards has a massive edge.
The battlefield is split by a river with bridges creating narrow crossing points. Units can only cross at bridges, which creates natural chokepoints where fights concentrate. You choose which lane to push — committing troops to one bridge or splitting them across both. Placing all your units in a single lane creates a powerful push but leaves the other lane undefended. Splitting across both bridges applies pressure on two fronts but with weaker individual pushes. Recognizing when to commit to one lane versus splitting is a core decision in every match.
Deploying a card that drains you to zero elixir is the most common beginner mistake. If the opponent drops a push on your undefended lane while you have nothing to spend, you lose a tower for free. Always keep at least enough elixir to deploy one cheap troop defensively. Treating your elixir like a bank balance with a minimum reserve changes how many towers you lose to counter-pushes.
Instead of opening with an aggressive push, wait a few seconds for the AI to play a card. Once you see what the opponent sends, you can deploy a counter — a ranged unit against melee troops, or a spell to clear a cluster. Reacting costs the same elixir as initiating, but it gives you an information advantage and often trades more efficiently because your unit targets the right threat immediately.
A single low-health ranged unit dies quickly when it crosses the bridge alone. Instead, deploy a high-health hero or tank-type Viking first and wait for it to approach the bridge, then place ranged troops or support units behind it. The tank absorbs tower damage while the ranged units deal damage from safety. This stacked push is far more effective than sending individual cards one at a time, which lets the opponent deal with each unit separately.
Spells deal area damage to a targeted zone, making them most efficient when multiple enemy units are grouped. Wasting a spell on a single troop that your tower could handle alone burns elixir for minimal value. Wait until the opponent sends two or three units across a bridge, then drop a spell on the cluster. The elixir trade — spending one spell card to eliminate multiple unit cards — swings the resource advantage heavily in your favor.
The final 60 seconds double elixir regeneration, meaning you can deploy cards roughly twice as fast. If you're even on towers entering this phase, you have a strong chance to win by overwhelming the opponent with rapid back-to-back deployments. Avoid taking unnecessary risks in the first two minutes. Defend your towers, make efficient trades, and save your strongest push for the moment when elixir flows fast enough to sustain it. The player who builds a strategic advantage through patient defense and then explodes in the final minute wins more consistently.
A deck full of expensive heroes feels powerful but leaves you unable to respond to fast enemy pushes because you're always waiting for enough elixir. A deck of only cheap troops lacks the punch to break through defended towers. Mix two or three high-cost powerhouse cards with four or five low-cost troops and at least one spell. This balance ensures you always have something affordable to play while keeping a strong card available when you need to commit to a push.
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