2027 ISS by Endorphina: fuel-cell Free Games guide

2027 ISS is a five-reel, three-row slot with nine paylines. Endorphina publishes 96.06% RTP, medium-high volatility and a €0.09–€144 supplier stake range. Three or more ISS Scatters open Free Games with three fuel cells, random Fuel and Hyper Space Jump events and a x3 win multiplier.

These provider specifications were checked on 8 October 2026. They do not confirm New Zealand operator availability, NZD limits or the RTP active in a particular account. Verify the deployed game help.

Published configuration

Field	Official value
Grid	5×3
Paylines	9
RTP	96.06%
Volatility	Medium-High
Bet reference	€0.09–€144
Trigger	3+ ISS Scatters
Opening feature state	3 fuel cells
Fuel	Adds one cell and pays 2x total bet
Hyper Space Jump	Consumes one cell and pays 2x total bet
Free Games wins	x3

“Unlimited” means the feature has no fixed published spin count; it still ends when the fuel-cell state reaches its terminal condition.

Nine fixed paylines

Copy the nine paths from live help before auditing a round. Matching space-themed symbols must follow an enabled left-to-right route. A visually connected group elsewhere on the grid is not enough.

Record total stake and any denomination because the public symbol values alternate between base-bet and total-bet units. Those units should never be merged casually.

ISS Scatter and direct award

The ISS sign acts as Scatter. Three or more symbols trigger the feature, while five are published at 500x base bet. Keep direct Scatter credit on the trigger round outside the later fuel-cell subtotal.

Capture the opening counter showing three fuel cells. If the deployed interface shows a different state, preserve that evidence and version rather than forcing the public description onto it.

Fuel and Hyper Space Jump

Fuel adds one cell and pays 2x total bet. Hyper Space Jump consumes one cell and also pays 2x total bet. Both events are awarded randomly according to Endorphina.

Create one ledger row per Free Game with counter before spin, event, direct payment, line subtotal and counter after spin. Do not net a Fuel and Jump event mentally if both appear; preserve the order displayed by the engine.

x3 feature multiplier

All Free Games prizes are described as multiplied by three. Check whether direct 2x event payments are included in that multiplier or remain separate; use the result panel rather than applying x3 twice.

For ordinary lines, list the table value, number of winning routes, Wild substitution and final feature credit. If history already displays multiplied amounts, do not multiply the subtotal again.

Cosmonaut Wild and doubling

The cosmonaut woman is Wild and substitutes for regular symbols except Fuel, Hyper Space Jump and Scatter. Five Wilds are published at 1000x base bet. The provider FAQ also states that a win containing one or more Wilds is doubled.

Apply doubling only to winning combinations using a Wild, and follow the live breakdown for multiple Wilds. A Wild elsewhere on the grid does not double unrelated routes.

Top regular symbol

The roulette wheel is listed as the highest regular symbol, with five paying 83x base bet. Its visual theme does not create a separate roulette feature in the published rules.

Trace the exact nine routes before applying 83x. Several symbols on non-payline coordinates cannot be combined into an all-ways payment.

Counter termination

The Free Games continue while at least one fuel cell remains. A final Hyper Space Jump can close the feature after its direct payment and any ordinary line settlement. Record all components even when the counter reaches zero.

The number of rounds cannot be known in advance because Fuel and Jump events are random. Do not turn the word “unlimited” into an expected duration or marketing promise.

Risk Game and Bonus Pop

Classic Risk Game and Bonus Pop appear in the provider feature list. Risk follows an eligible win; save the original credit, risk amount, choice and outcome as separate events.

Bonus Pop may not be offered in every jurisdiction. If present, document price, feature route and any RTP difference. Paid entry should not be mixed with natural Scatter samples.

RTP and medium-high volatility

The published 96.06% is a theoretical long-run rate for the referenced configuration. It does not predict the next Fuel event or guarantee a minimum number of feature spins. Medium-high volatility likewise describes distribution, not timing.

Choose money and time limits before play. A low fuel counter is not a reason to increase stake on later paid rounds.

Mobile and demo verification

Endorphina says 2027 ISS works on mobile and desktop. That does not prove operator access in New Zealand. On a phone, ensure the fuel counter, event label, x3 indicator, full grid, stake and balance remain visible.

The official demo can help locate rules. Demo results do not demonstrate local real-money availability or operator-specific limits.

Worked counter audit

Begin with three cells. If Fuel appears, record the direct 2x total-bet payment and the displayed increase. On a later Jump, record its 2x payment and decrease. Copy the actual before-and-after state rather than assuming when the UI updates.

Continue until the feature summary appears. Sum ordinary line credits and direct event payments exactly once, accounting for the displayed x3 treatment.

Worked Wild audit

Suppose the cosmonaut replaces a roulette symbol on one highlighted route. Record the regular five-symbol paytable value, then the Wild doubling and feature x3 in the order shown by history.

Do not use the Wild to replace Fuel, Jump or Scatter. Those exclusions can explain why an apparently complete feature combination did not trigger an event.

Base bet versus total bet

Scatter, Wild and roulette examples use base bet. Fuel and Jump payments use total bet. Save the help glossary, total stake and denomination before converting any multiplier into currency.

If rounding creates a small difference, preserve the original currency settlement and ask support which unit was used. Do not “correct” the result by selecting a convenient interpretation.

Evidence pack for support

Provide title, version, active RTP, currency, total stake, UTC time, parent round ID, trigger grid, opening cells, every event and transition, Wild-supported lines, x3 treatment, summary and balances.

Ask for the server counter and rule version. Avoid relying on a cropped space animation that omits identifiers and the fuel state.

Simultaneous event edge cases

If Fuel and Hyper Space Jump are both visible in one settled round, do not simply cancel them before reviewing the interface. Their application order may affect the displayed counter, while each carries a published 2x total-bet payment. Save the before state, event sequence and after state.

A Wild cannot replace either event symbol, so a cosmonaut beside two Fuel icons does not automatically create a third. The same exclusion applies to Scatter. Use the feature labels rather than treating every special symbol as part of the nine-line paytable.

When the last cell is consumed on a spin that also wins, preserve the ordinary line credit, event payment and closing counter. Feature termination happens after settlement under the deployed sequence; reaching zero should not erase a valid result on that final round.

Reconstructing the multiplier order

Start with the currency line subtotal before special effects. Mark any line that uses the cosmonaut Wild and the displayed doubling. Then record the Free Games x3 factor. Finally, add direct Fuel or Jump payments according to the game’s result panel.

This worksheet is descriptive rather than prescriptive. If the server report applies x3 before Wild doubling, the mathematical product may be identical, but rounding or component-specific rules can differ. Preserve the actual order shown by history instead of rewriting it for convenience.

Never apply x3 to the 500x Scatter or 2x event credit unless live help confirms those components participate. The headline feature multiplier does not automatically govern every displayed number.

Mission-state recovery after interruption

If a network loss occurs, note the last visible fuel count and parent round ID before reloading. After reconnection, compare server history with the new counter and balance. Do not initiate another paid spin until the previous feature shows a final state.

Animations may be skipped during recovery even when every child round settled correctly. Ask support for the counter ledger if history shows only the feature total.

Practical session controls

Confirm title, active RTP, nine-line map, total stake and special-symbol exclusions before play. Choose a time and money ceiling that does not depend on receiving Fuel. The open-ended presentation can obscure elapsed time, so an external timer is useful.

After the session, retain relevant evidence securely and redact unrelated personal details before publication. The objective is to verify settlement, not expose the account.

Final assessment

2027 ISS combines three layers: a fuel-controlled duration, x3 Free Games settlement and Wild-assisted doubling. Each layer needs its own column in an audit worksheet.

The provider page supports the grid, nine lines, 96.06% RTP, event payments and feature state. Regional availability and deployed values still require account confirmation.

Official and related sources

• 2027 ISS official product page
• Endorphina catalogue guide
• Responsible gambling guide
• Corrections policy

How to verify the version you can actually open

A provider page proves that a title exists and describes the supplier's intended rules. It does not prove that a casino accepts players in New Zealand, that the title is enabled for a particular account, or that the highest published RTP is the version in the lobby. Treat availability, operator eligibility and product configuration as three separate checks.

Start with identity, then configuration

Open the game only through the authenticated casino lobby. The information or help panel should identify Endorphina, the exact title and the active mathematical return. Compare the reel or grid layout, paylines or cluster rules, named features and symbol behaviour with the official product material. Similar artwork or a matching title is not enough when the help file is missing or inconsistent.

When the supplier publishes several RTP values, report all of them as configurations. Do not assume the highest option is deployed. RTP is a theoretical long-run measure across a very large number of rounds; it is not a refund rate for one player and cannot predict the next result. Volatility is different: it describes how unevenly results are distributed on the provider's scale.

Read stake controls as money, not interface decoration

Provider sheets often quote a reference range in euros. That range does not establish New Zealand-dollar support or the limits in a specific account. Before a paid round, identify the total amount that will leave the balance. If the interface separates denomination, coins and lines, verify the combined total. If Extra Bet is active, calculate its full cost before pressing spin.

Feature-buy prices are multiples of the current bet, not promised returns. A 100x purchase at a $1 stake costs $100; at a $2 stake it costs $200. Availability can vary by market and some mathematical configurations may not support the control. If the live help does not explain the price, delivered feature and active RTP, leave the option unused.

Keep simulation figures in their proper scope

A game sheet may publish a maximum result observed in a large simulation. That is not automatically the contractual maximum payout and never describes a likely session. Preserve the provider's wording, sample size and configuration. Check the live rules for a binding cap and the operator terms for any separate payout limit. Do not turn an extreme result into a promotional headline.

Audit a disputed round

If an animation freezes or a connection drops, do not repeat the wager immediately. Reopen the game through the authenticated lobby and inspect round history. Record the time, total stake, balance movement and round identifier. The result can be settled by the gaming system even when the device never displays the final animation. Send evidence through verified operator support; never disclose a password, recovery phrase or one-time code.

Read the paytable as a calculation document

The paytable should explain what creates a win, which symbols substitute, where special symbols can land and how multiple awards combine. For line games, confirm direction and active paylines. For cluster games, confirm adjacency, minimum group size and the order of collection. For respins, identify what remains locked, what resets the counter and what ends the feature. A graphic effect can illustrate those rules but cannot replace them.

Separate addition from multiplication. Several prize values may be added before a multiplier applies, while reel-specific multipliers can sometimes multiply together only when each reel participates in the same win. Reconstruct one low-stake result from game history. If the arithmetic cannot be matched to the help file, stop and ask the operator rather than guessing.

Do not confuse hit frequency with a profitable round

Provider sheets can publish hit frequency or category probabilities. A hit simply means a round returned a qualifying amount; it can be smaller than the stake. “Big”, “Mega” or “Epic” thresholds are provider reporting categories, not promises. They are useful for comparing mathematical versions only when definitions and samples are the same.

Random outcomes do not become due after a long gap. A feature that appeared repeatedly in a demo or marketing clip has no obligation to repeat in a funded session. Previous rounds do not create a debt from the next random result.

Confirm market and device behaviour independently

A title can exist in the supplier catalogue while an operator disables it for a territory, currency, device or bonus. Language localisation is not evidence of legal availability. Confirm the operator's identity, accepted countries and current lobby separately from the provider review.

On mobile, verify that balance, total bet, feature state and help remain visible without overlap. On desktop, check that browser zoom does not hide a purchase control or change the apparent denomination. Mathematical configuration should not change merely because the screen changes; if the help shows another RTP, treat it as a different deployment and record it.

Keep a compact evidence record

For any fact used in a review, save the title, provider, official URL, document date when available, access date and exact territorial scope. For a live session, add the operator domain, Game ID, RTP, currency and a non-sensitive screenshot of the help panel. This makes later corrections possible when a supplier updates a sheet or an operator changes configuration.

Missing information should remain missing. Do not estimate an RTP from results, convert a euro reference range into an operator's NZD limit, or treat another casino's configuration as evidence. A transparent “not confirmed” is more useful than a precise-looking number without the correct source.

Use limits that survive the feature design

Collection meters, expanding grids, sticky symbols and near misses can make a session feel unfinished. Unless the rules explicitly preserve progress, the visible state has no value after the round or feature ends. Set a money limit and time limit before launch, count feature buys immediately, and stop at the limit even when a meter appears close to an upgrade.

No random game is an income plan. Do not borrow, use essential funds or raise the stake to recover a loss. If play stops feeling recreational, use timeout, deposit-limit or self-exclusion tools and consult the site's responsible gambling guide.